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lftp(1)                                                                                                                  lftp(1)



NAME
       lftp - Sophisticated file transfer program

SYNTAX
       lftp [-d] [-e cmd] [-p port] [-u user[,pass]] [site]
       lftp -f script_file
       lftp -c commands
       lftp --version
       lftp --help


VERSION
       This man page documents lftp version 4.3.3.


DESCRIPTION
       lftp  is  a  file  transfer  program that allows sophisticated ftp, http and other connections to other hosts. If site is
       specified then lftp will connect to that site otherwise a connection has to be established with the open command.

       lftp can handle several file access methods - ftp, ftps, http, https, hftp, fish, sftp and file (https and ftps are  only
       available  when  lftp  is compiled with GNU TLS or OpenSSL library). You can specify the method to use in `open URL' com-
       mand, e.g. `open http://www.us.kernel.org/pub/linux'. hftp is ftp-over-http-proxy protocol. It can be used  automatically
       instead  of ftp if ftp:proxy is set to `http://proxy[:port]'. Fish is a protocol working over an ssh connection to a unix
       account. SFtp is a protocol implemented in ssh2 as sftp subsystem.

       Besides FTP-like protocols, lftp has support for BitTorrent protocol as `torrent' command. Seeding is also supported.


       Every operation in lftp is reliable, that is any not fatal error is ignored and the operation is repeated.  So  if  down-
       loading breaks, it will be restarted from the point automatically. Even if ftp server does not support REST command, lftp
       will try to retrieve the file from the very beginning until the file is transferred completely.

       lftp has shell-like command syntax allowing you to launch several commands in parallel in background (&). It is also pos-
       sible  to  group  commands  within () and execute them in background. All background jobs are executed in the same single
       process. You can bring a foreground job to background with ^Z (c-z) and back with command `wait' (or `fg' which is  alias
       to `wait'). To list running jobs, use command `jobs'. Some commands allow redirecting their output (cat, ls, ...) to file
       or via pipe to external command. Commands can be executed conditionally based on termination status of  previous  command
       (&&, ||).

       If you exit lftp when some jobs are not finished yet, lftp will move itself to nohup mode in background. The same happens
       when you have a real modem hangup or when you close an xterm.

       lftp has built-in mirror which can download or update a whole directory tree. There is also reverse  mirror  (mirror  -R)
       which  uploads or updates a directory tree on server. Mirror can also synchronize directories between two remote servers,
       using FXP if available.

       There is command `at' to launch a job at specified time in current context, command `queue' to queue commands for sequen-
       tial execution for current server, and much more.

       On  startup,  lftp  executes  /etc/lftp.conf  and then ~/.lftprc and ~/.lftp/rc. You can place aliases and `set' commands
       there. Some people prefer to see full protocol debug, use `debug' to turn the debug on. Use `debug 3' to see only  greet-
       ing messages and error messages.

       lftp  has  a  number of settable variables. You can use `set -a' to see all variables and their values or `set -d' to see
       list of defaults.  Variable names can be abbreviated and prefix can be omitted unless the rest becomes ambiguous.

       If lftp was compiled with OpenSSL (configure --with-openssl), then it includes software developed by the OpenSSL  Project
       for use in the OpenSSL Toolkit. (http://www.openssl.org/)


   Commands
       ! shell command

       Launch shell or shell command.

            !ls

       To do a directory listing of the local host.

       alias  [name [value]]

       Define or undefine alias name. If value is omitted, the alias is undefined, else it takes the value value. If no argument
       is given the current aliases are listed.

            alias dir ls -lF
            alias less zmore

       at time [ -- command ]

       Wait until the given time and execute given (optional) command. See also at(1).

       attach  [PID]

       Attach the terminal to specified backgrounded lftp process.

       bookmark  [subcommand]

       The bookmark command controls bookmarks.

            add <name> [<loc>]   add current place or given location to bookmarks and bind to given name
            del <name>           remove bookmark with name
            edit                 start editor on bookmarks file
            import <type>        import foreign bookmarks
            list                 list bookmarks (default)

       cache  [subcommand]

       The cache command controls local memory cache.  The following subcommands are recognized:

            stat        print cache status (default)
            on|off      turn on/off caching
            flush       flush cache
            size lim    set memory limit, -1 means unlimited
            expire Nx   set cache expiration time to N seconds (x=s) minutes (x=m) hours (x=h) or days (x=d)

       cat files

       cat outputs the remote file(s) to stdout.  (See also more, zcat and zmore)

       cd rdir

       Change current remote directory.  The previous remote directory is stored as `-'. You can do `cd -' to change the  direc-
       tory  back.  The previous directory for each site is also stored on disk, so you can do `open site; cd -' even after lftp
       restart.

       chmod mode files

       Change permission mask on remote files. The mode must be an octal number.

       close [-a]

       Close idle connections.  By default only with the current server, use -a to close all idle connections.

       cls [OPTS] files...

       `cls' tries to retrieve information about specified files or directories and outputs the information according to  format
       options. The difference between `ls' and `cls' is that `ls' requests the server to format file listing, and `cls' formats
       it itself, after retrieving all the needed information.  See `help cls' for options.

       command cmd args...

       execute given command ignoring aliases.

       debug [-o file] level|off

       Switch debugging to level or turn it off.  Use -o to redirect the debug output to a file.

       echo [-n] string

       guess what it does.

       eval [-f format ] args...

       without -f it just executes given arguments as a command. With -f, arguments are transformed into a new command. The for-
       mat can contain plain text and placeholders $0...$9 and $@, corresponding to the arguments.

       exit [bg] [top] [kill] [code]

       exit will exit from lftp or move to background if there are active jobs. If no job is active, code is passed to operating
       system as lftp's termination status. If code is omitted, the exit code of last command is used.

       `exit bg' forces moving to background when cmd:move-background is false.  `exit top' makes top  level  `shell'  (internal
       lftp  command executor) terminate.  `exit kill' kills all numbered jobs before exiting. The options can be combined, e.g.
       `at 08:00 -- exit top kill &' kills all jobs and makes lftp exit at specified time.

       fg

       Alias for `wait'.

       find  [directory]

       List files in the directory (current directory by default) recursively.  This can help with servers lacking  ls  -R  sup-
       port. You can redirect output of this command.

       ftpcopy

       Obsolete. Use one of the following instead:
            get ftp://... -o ftp://...
            get -O ftp://... file1 file2...
            put ftp://...
            mput ftp://.../*
            mget -O ftp://... ftp://.../*
       or  other  combinations  to  get FXP transfer (directly between two ftp servers).  lftp would fallback to plain copy (via
       client) if FXP transfer cannot be initiated or ftp:use-fxp is false.

       get [-E] [-a] [-c] [-e] [-O base] rfile [-o lfile] ...

       Retrieve the remote file rfile and store it as the local file lfile.  If -o is omitted, the file is stored to local  file
       named  as  base  name of rfile. You can get multiple files by specifying multiple instances of rfile (and -o lfile). Does
       not expand wildcards, use mget for that.

            -c          continue, reget
            -E          delete source files after successful transfer
            -e          delete target file before the transfer
            -a          use ascii mode (binary is the default)
            -O <base>   specifies base directory or URL where files should be placed

       Examples:
            get README
            get README -o debian.README
            get README README.mirrors
            get README -o debian.README README.mirrors -o debian.mirrors
            get README -o ftp://some.host.org/debian.README
            get README -o ftp://some.host.org/debian-dir/   (end slash is important)

       get1 [OPTS] rfile

       Transfer a single file. Options:

            -o <lfile>                  destination file name (default - basename of rfile)
            -c                          continue, reget
            -E                          delete source files after successful transfer
            -a                          use ascii mode (binary is the default)
            --source-region=<from-to>   transfer specified region of source file
            --target-position=<pos>     position in target file to write data at

       glob [-d] [-a] [-f] command patterns

       Glob given patterns containing metacharacters and pass result to given command.  E.g. ``glob echo *''.

            -f   plain files (default)
            -d   directories
            -a   all types

       help [cmd]

       Print help for cmd or if no cmd was specified print a list of available commands.

       jobs [-v]

       List running jobs. -v means verbose, several -v can be specified.

       kill all|job_no

       Delete specified job with job_no or all jobs.  (For job_no see jobs)

       lcd ldir

       Change current local directory ldir. The previous local directory is stored as `-'. You can do  `lcd  -'  to  change  the
       directory back.

       ln [-s] existing-file new-link

       Make a hard/symbolic link to an existing file.  Option -s selects creation of a symbolic link.

       local command

       Run specified command with local directory file:// session instead of remote session. Examples:
            local pwd
            local ls
            local mirror /dir1 /dir2

       lpwd

       Print current working directory on local machine.

       ls params

       List  remote files. You can redirect output of this command to file or via pipe to external command.  By default, ls out-
       put is cached, to see new listing use rels or cache flush.

       mget [-c] [-d] [-a] [-E] [-O base] files

       Gets selected files with expanded wildcards.

            -c          continue, reget.
            -d          create directories the same as file names and get the files into them instead of current directory.
            -E          delete source files after successful transfer
            -a          use ascii mode (binary is the default)
            -O <base>   specifies base directory or URL where files should be placed

       mirror [OPTS] [source [target]]

       Mirror specified source directory to local target directory. If target directory ends with a slash, the source base  name
       is appended to target directory name. Source and/or target can be URLs pointing to directories.

            -c,    --continue                continue a mirror job if possible
            -e,    --delete                  delete files not present at remote site
                   --delete-first            delete old files before transferring new ones
                   --depth-first             descend into subdirectories before transferring files
            -s,    --allow-suid              set suid/sgid bits according to remote site
                   --allow-chown             try to set owner and group on files
                   --ascii                   use ascii mode transfers (implies --ignore-size)
                   --ignore-time             ignore time when deciding whether to download
                   --ignore-size             ignore size when deciding whether to download
                   --only-missing            download only missing files
                   --only-existing           download only files already existing at target
            -n,    --only-newer              download only newer files (-c won't work)
                   --no-empty-dirs           don't create empty directories (implies --depth-first)
            -r,    --no-recursion            don't go to subdirectories
                   --no-symlinks             don't create symbolic links
            -p,    --no-perms                don't set file permissions
                   --no-umask                don't apply umask to file modes
            -R,    --reverse                 reverse mirror (put files)
            -L,    --dereference             download symbolic links as files
            -N,    --newer-than=SPEC         download only files newer than specified time
                   --on-change=CMD           execute the command if anything has been changed
                   --older-than=SPEC         download only files older than specified time
                   --size-range=RANGE        download only files with size in specified range
            -P,    --parallel[=N]            download N files in parallel
                   --use-pget[-n=N]          use pget to transfer every single file
                   --loop                    loop until no changes found
            -i RX, --include RX              include matching files
            -x RX, --exclude RX              exclude matching files
            -I GP, --include-glob GP         include matching files
            -X GP, --exclude-glob GP         exclude matching files
            -v,    --verbose[=level]         verbose operation
                   --log=FILE                write lftp commands being executed to FILE
                   --script=FILE             write lftp commands to FILE, but don't execute them
                   --just-print, --dry-run   same as --script=-
                   --use-cache               use cached directory listings
                   --Remove-source-files     remove files after transfer (use with caution)
            -a                               same as --allow-chown --allow-suid --no-umask

       When  using  -R, the first directory is local and the second is remote.  If the second directory is omitted, base name of
       first directory is used.  If both directories are omitted, current local and remote  directories  are  used.   If  target
       directory ends with a slash (except root directory) then base name of source directory is appended.

       RX is an extended regular expression, just like in egrep(1).

       GP is a glob pattern, e.g. `*.zip'.

       Include  and  exclude  options can be specified multiple times. It means that a file or directory would be mirrored if it
       matches an include and does not match to excludes after the include, or does not match anything and the  first  check  is
       exclude. Directories are matched with a slash appended.

       Note  that  symbolic  links are not created when uploading to remote server, because ftp protocol cannot do it. To upload
       files the links refer to, use `mirror -RL' command (treat symbolic links as files).

       For option --newer-than you can either specify a file or time  specification  like  that  used  by  at(1)  command,  e.g.
       `now-7days' or `week ago'. If you specify a file, then modification time of that file will be used.

       Verbosity level can be selected using --verbose=level option or by several -v options, e.g. -vvv. Levels are:
            0 - no output (default)
            1 - print actions
            2 - +print not deleted file names (when -e is not specified)
            3 - +print directory names which are mirrored

       --only-newer  turns off file size comparison and uploads/downloads only newer files even if size is different. By default
       older files are transferred and replace newer ones.

       You can mirror between two servers if you specify URLs instead of directories.  FXP is used automatically  for  transfers
       between ftp servers, if possible.

       Some ftp servers hide dot-files by default (e.g. .htaccess), and show them only when LIST command is used with -a option.
       In such case try to use `set ftp:list-options -a'.

       mkdir [-p] dir(s)

       Make remote directories. If -p is used, make all components of paths.

       module module [ args ]

       Load given module using dlopen(3) function. If module name does not contain a slash, it is searched in directories speci-
       fied by module:path variable.  Arguments are passed to module_init function. See README.modules for technical details.

       more files

       Same as `cat files | more'. if PAGER is set, it is used as filter.  (See also cat, zcat and zmore)

       mput [-c] [-d] [-a] [-E] [-O base] files

       Upload  files  with wildcard expansion. By default it uses the base name of local name as remote one. This can be changed
       by `-d' option.

            -c          continue, reput
            -d          create directories the same as in file names and put the files into them instead of current directory
            -E          delete source files after successful transfer (dangerous)
            -a          use ascii mode (binary is the default)
            -O <base>   specifies base directory or URL where files should be placed

       mrm file(s)

       Same as `glob rm'. Removes specified file(s) with wildcard expansion.

       mv file1 file2

       Rename file1 to file2.

       nlist [args]

       List remote file names

       open [-e cmd] [-u user[,pass]] [-p port] host|url

       Select an ftp server.

       pget [OPTS] rfile [-o lfile]

       Gets the specified file using several connections. This can speed up transfer, but  loads  the  net  and  server  heavily
       impacting other users. Use only if you really have to transfer the file ASAP.  Options:

            -c           continue transfer. Requires lfile.lftp-pget-status file.
            -n maxconn   set maximum number of connections (default is taken from pget:default-n setting)

       put [-E] [-a] [-c] [-O base] lfile [-o rfile]

       Upload  lfile with remote name rfile. If -o omitted, the base name of lfile is used as remote name. Does not expand wild-
       cards, use mput for that.

            -o <rfile>   specifies remote file name (default - basename of lfile)
            -c           continue, reput. It requires permission to overwrite remote files
            -E           delete source files after successful transfer (dangerous)
            -a           use ascii mode (binary is the default)
            -O <base>    specifies base directory or URL where files should be placed

       pwd [-p]

       Print current remote URL. Use `-p' option to show password in the URL.

       queue [-n num ] cmd

       Add the given command to queue for sequential execution. Each site has its own queue. `-n' adds the  command  before  the
       given  item  in  the  queue. Don't try to queue `cd' or `lcd' commands, it may confuse lftp. Instead do the cd/lcd before
       `queue' command, and it will remember the place in which the command is to be done. It is possible to queue up an already
       running job by `queue wait <jobno>', but the job will continue execution even if it is not the first in queue.

       `queue  stop'  will  stop the queue, it will not execute any new commands, but already running jobs will continue to run.
       You can use `queue stop' to create an empty stopped queue. `queue start' will resume  queue  execution.   When  you  exit
       lftp, it will start all stopped queues automatically.

       `queue' with no arguments will either create a stopped queue or print queue status.

       queue --delete|-d [index or wildcard expression]

       Delete one or more items from the queue. If no argument is given, the last entry in the queue is deleted.

       queue --move|-m <index or wildcard expression> [index]

       Move the given items before the given queue index, or to the end if no destination is given.

            -q   Be quiet.
            -v   Be verbose.
            -Q   Output in a format that can be used to re-queue. Useful with --delete.

       Examples:
            > get file &
            [1] get file
            > queue wait 1
            > queue get another_file
            > cd a_directory
            > queue get yet_another_file

            queue -d 3             Delete the third item in the queue.
            queue -m 6 4           Move the sixth item in the queue before the fourth.
            queue -m "get*zip" 1   Move  all commands matching "get*zip" to the beginning of the queue.  (The order of the items
                                   is preserved.)
            queue -d "get*zip"     Delete all commands matching "get*zip".

       quote cmd

       For FTP - send the command uninterpreted. Use with caution - it can lead to unknown remote  state  and  thus  will  cause
       reconnect.  You  cannot  be  sure that any change of remote state because of quoted command is solid - it can be reset by
       reconnect at any time.

       For HTTP - specific to HTTP action. Syntax: ``quote <command> [<args>]''.  Command may be ``set-cookie'' or ``post''.
            open http://www.site.net
            quote set-cookie "variable=value; othervar=othervalue"
            set http:post-content-type application/x-www-form-urlencoded
            quote post /cgi-bin/script.cgi "var=value&othervar=othervalue" > local_file

       For FISH - send the command uninterpreted. This can be used to execute arbitrary commands on server. The command must not
       take input or print ### at new line beginning. If it does, the protocol will become out of sync.
            open fish://server
            quote find -name \*.zip

       reget rfile [-o lfile]

       Same as `get -c'.

       rels [args]

       Same as `ls', but ignores the cache.

       renlist [args]

       Same as `nlist', but ignores the cache.

       repeat [OPTS] [[-d] delay] [command]

       Repeat specified command with a delay between iterations.  Default delay is one second, default command is empty.

            -c <count>    maximum number of iterations
            -d <delay>    delay between iterations
            --while-ok    stop when command exits with non-zero code
            --until-ok    stop when command exits with zero code
            --weak        stop when lftp moves to background.

       Examples:
            repeat at tomorrow -- mirror
            repeat 1d mirror

       reput lfile [-o rfile]

       Same as `put -c'.

       rm [-r] [-f] files

       Remove  remote  files.  Does not expand wildcards, use mrm for that. -r is for recursive directory remove. Be careful, if
       something goes wrong you can lose files. -f suppress error messages.

       rmdir dir(s)

       Remove remote directories.

       scache [session]

       List cached sessions or switch to specified session.

       set [var [val]]

       Set variable to given value. If the value is omitted, unset the variable.  Variable  name  has  format  ``name/closure'',
       where  closure  can  specify  exact application of the setting. See below for details.  If set is called with no variable
       then only altered settings are listed.  It can be changed by options:

            -a   list all settings, including default values
            -d   list only default values, not necessary current ones

       site site_cmd

       Execute site command site_cmd and output the result.  You can redirect its output.

       sleep interval

       Sleep given time interval and exit. Interval is in seconds by default, but can be suffixed with 'm', 'h',  'd'  for  min-
       utes, hours and days respectively.  See also at.

       slot [name]

       Select  specified  slot or list all slots allocated. A slot is a connection to a server, somewhat like a virtual console.
       You can create multiple slots connected to different servers and switch between them. You can also  use  slot:name  as  a
       pseudo-URL evaluating to that slot location.

       Default readline binding allows quick switching between slots named 0-9 using Meta-0 - Meta-9 keys (often you can use Alt
       instead of Meta).

       source file
       source -e command

       Execute commands recorded in file file or returned by specified external command.
            source ~/.lftp/rc
            source -e echo help

       suspend

       Stop lftp process. Note that transfers will be also stopped until you continue the process with shell's  fg  or  bg  com-
       mands.

       torrent [OPTS] torrent-files...

       Start  BitTorrent  process  for  the given torrent-files, which can be a local file or URL. Local wildcards are expanded.
       Existing files are first validated unless --force-valid option is given. Missing pieces are downloaded. Files are  stored
       in  specified  directory  or  current working directory by default. Seeding continues until ratio reachs torrent:stop-on-
       ratio setting or time of torrent:seed-max-time outs.

       Options:

            -O <directory>   specifies base directory where files should be placed
            --force-valid    skip file validation (if you are sure they are ok).

       user user [pass]
       user URL [pass]

       Use specified info for remote login. If you specify an URL with user name, the entered password will be  cached  so  that
       future URL references can use it.

       version

       Print lftp version.

       wait [jobno]
       wait all

       Wait for specified job to terminate. If jobno is omitted, wait for last backgrounded job.

       `wait all' waits for all jobs termination.

       zcat files

       Same as cat, but filter each file through zcat. (See also cat, more and zmore)

       zmore files

       Same as more, but filter each file through zcat. (See also cat, zcat and more)


   Settings
       On  startup,  lftp executes ~/.lftprc and ~/.lftp/rc.  You can place aliases and `set' commands there. Some people prefer
       to see full protocol debug, use `debug' to turn the debug on.

       There is also a system-wide startup file in /etc/lftp.conf.  It can be in different directory, see FILES section.

       lftp has the following settable variables (you can also use `set -a' to see all variables and their values):

       bmk:save-passwords (boolean)
              save plain text passwords in ~/.lftp/bookmarks on `bookmark add' command.  Off by default.

       cmd:at-exit (string)
              the commands in string are executed before lftp exits.

       cmd:csh-history (boolean)
              enables csh-like history expansion.

       cmd:default-protocol (string)
              The value is used when `open' is used with just host name without protocol. Default is `ftp'.

       cmd:fail-exit (boolean)
              if true, exit when an unconditional (without || and && at begin) command fails.

       cmd:interactive (boolean)
              when true, lftp acts interactively, handles terminal signals and outputs some extra messages. Default  depends  on
              stdin being a terminal.

       cmd:long-running (seconds)
              time of command execution, which is considered as `long' and a beep is done before next prompt. 0 means off.

       cmd:ls-default (string)
              default ls argument

       cmd:move-background (boolean)
              when false, lftp refuses to go to background when exiting. To force it, use `exit bg'.

       cmd:move-background-detach (boolean)
              when  true  (default), lftp detaches itself from the control terminal when moving to background, it is possible to
              attach back using `attach' command; when false, lftp tricks the shell to move lftp to background process group and
              continues to run, then fg shell command brings lftp back to foreground unless it has done all jobs and terminated.

       cmd:prompt (string)
              The prompt. lftp recognizes the following backslash-escaped special characters that are decoded as follows:
              \@     insert @ if current user is not default
              \a     an ASCII bell character (07)
              \e     an ASCII escape character (033)
              \h     the hostname you are connected to
              \n     newline
              \s     the name of the client (lftp)
              \S     current slot name
              \u     the username of the user you are logged in as
              \U     the URL of the remote site (e.g., ftp://g437.ub.gu.se/home/james/src/lftp)
              \v     the version of lftp (e.g., 2.0.3)
              \w     the current working directory at the remote site
              \W     the base name of the current working directory at the remote site
              \nnn   the character corresponding to the octal number nnn
              \\     a backslash
              \?     skips next character if previous substitution was empty.
              \[     begin  a sequence of non-printing characters, which could be used to embed a terminal control sequence into
                     the prompt
              \]     end a sequence of non-printing characters


       cmd:parallel (number)
              Number of jobs run in parallel in non-interactive mode. For example, this may be useful for scripts with  multiple
              `get'  commands.  Note  that setting this to a value greater than 1 changes conditional execution behaviour, basi-
              cally makes it inconsistent.

       cmd:queue-parallel (number)
              Number of jobs run in parallel in a queue.

       cmd:save-cwd-history (boolean)
              when true, lftp saves last CWD of each site to ~/.lftp/cwd_history, allowing to do ``cd -''  after  lftp  restart.
              Default is true.

       cmd:save-rl-history (boolean)
              when true, lftp saves readline history to ~/.lftp/rl_history on exit.  Default is true.

       cmd:set-term-status (boolean)
              when  true,  lftp  updates terminal status if supported (e.g. xterm). The closure for this setting is the terminal
              type from TERM environment variable.

       cmd:status-interval (timeinterval)
              the time interval between status updates.

       cmd:stifle-rl-history (number)
              the number of lines to keep in readline history.

       cmd:term-status (string)
              the format string to use to display terminal status. The closure for this setting is the terminal type  from  TERM
              environment variable. Default uses ``tsl'' and ``fsl'' termcap values.

              The following escapes are supported:

                   \a   bell
                   \e   escape
                   \n   new line
                   \s   "lftp"
                   \v   lftp version
                   \T   the status string

       cmd:time-style (string)
              This setting is the default value for cls --time-style option.

       cmd:trace (boolean)
              when true, lftp prints the commands it executes (like sh -x).

       cache:cache-empty-listings (boolean)
              When false, empty listings are not cached.

       cache:enable (boolean)
              When false, cache is disabled.

       cache:expire (time interval)
              Positive cache entries expire in this time interval.

       cache:expire-negative (time interval)
              Negative cache entries expire in this time interval.

       cache:size (number)
              Maximum cache size. When exceeded, oldest cache entries will be removed from cache.

       cmd:remote-completion (boolean)
              a boolean to control whether or not lftp uses remote completion.

       cmd:verify-host (boolean)
              if  true, lftp resolves host name immediately in `open' command.  It is also possible to skip the check for a sin-
              gle `open' command if `&' is given, or if ^Z is pressed during the check.

       cmd:verify-path (boolean)
              if true, lftp checks the path given in `cd' command.  It is also possible to skip the check for a single `cd' com-
              mand if `&' is given, or if ^Z is pressed during the check.  Examples:
                   set cmd:verify-path/hftp://* false
                   cd directory &

       cmd:verify-path-cached (boolean)
              When false, `cd' to a directory known from cache as existent will succeed immediately.  Otherwise the verification
              will depend on cmd:verify-path setting.

       color:use-color (tri-boolean)
              when true, cls command and completion output colored file listings according to  color:dir-colors  setting.   When
              set to auto, colors are used when output is a terminal.

       color:dir-colors (string)
              file listing color description. By default the value of LS_COLORS environment variable is used. See dircolors(1).

       dns:SRV-query (boolean)
              query  for  SRV records and use them before gethostbyname. The SRV records are only used if port is not explicitly
              specified. See RFC2052 for details.

       dns:cache-enable (boolean)
              enable DNS cache. If it is off, lftp resolves host name each time it reconnects.

       dns:cache-expire (time interval)
              time to live for DNS cache entries. It has format <number><unit>+, e.g.  1d12h30m5s or just 36h. To disable  expi-
              ration, set it to `inf' or `never'.

       dns:cache-size (number)
              maximum number of DNS cache entries.

       dns:fatal-timeout (time interval)
              limit  the  time  for  DNS  queries. If DNS server is unavailable too long, lftp will fail to resolve a given host
              name. Set to `never' to disable.

       dns:order (list of protocol names)
              sets the order of DNS queries. Default is ``inet6 inet'' which means first look up address in inet6  family,  then
              inet and use them in that order.  To disable inet6 (AAAA) lookup, set this variable to ``inet''.

       dns:use-fork (boolean)
              if true, lftp will fork before resolving host address. Default is true.

       dns:max-retries (number)
              If  zero, there is no limit on the number of times lftp will try to lookup an address.  If > 0, lftp will try only
              this number of times to look up an address of each address family in dns:order.

       file:charset (string)
              local character set. It is set from current locale initially.

       fish:charset (string)
              the character set used by fish server in requests, replies and file listings.  Default is empty  which  means  the
              same as local.

       fish:connect-program (string)
              the  program  to  use  for connecting to remote server. It should support `-l' option for user name, `-p' for port
              number. Default is `ssh -a -x'. You can set it to `rsh', for example.

       fish:shell (string)
              use specified shell on server side. Default is /bin/sh. On some systems, /bin/sh exits when doing  cd  to  a  non-
              existent  directory. lftp can handle that but it has to reconnect. Set it to /bin/bash for such systems if bash is
              installed.

       ftp:acct (string)
              Send this string in ACCT command after login. The result is ignored.  The closure  for  this  setting  has  format
              user@host.

       ftp:anon-pass (string)
              sets the password used for anonymous ftp access authentication.  Default is "lftp@".

       ftp:anon-user (string)
              sets the user name used for anonymous ftp access authentication.  Default is "anonymous".

       ftp:auto-sync-mode (regex)
              if first server message matches this regex, turn on sync mode for that host.

       ftp:charset (string)
              the  character  set  used  by ftp server in requests, replies and file listings.  Default is empty which means the
              same as local. This setting is only used when the server does not support UTF8.

       ftp:client (string)
              the name of ftp client to send with CLNT command, if supported by server.  If it is empty, then  no  CLNT  command
              will be sent.

       ftp:bind-data-socket (boolean)
              bind  data  socket  to  the  interface of control connection (in passive mode).  Default is true, exception is the
              loopback interface.

       ftp:fix-pasv-address (boolean)
              if true, lftp will try to correct address returned by server for PASV command in case when server  address  is  in
              public  network  and  PASV  returns  an  address from a private network. In this case lftp would substitute server
              address instead of the one returned by PASV command, port number would not be changed.  Default is true.

       ftp:fxp-passive-source (boolean)
              if true, lftp will try to set up source ftp server in passive mode first,  otherwise  destination  one.  If  first
              attempt  fails,  lftp  tries  to set them up the other way. If the other disposition fails too, lftp falls back to
              plain copy. See also ftp:use-fxp.

       ftp:home (string)
              Initial directory. Default is empty string which means auto. Set this to `/' if you don't like the look of %2F  in
              ftp URLs. The closure for this setting has format user@host.

       ftp:ignore-pasv-address (boolean)
              If  true, lftp uses control connection address instead of the one returned in PASV reply for data connection. This
              can be useful for broken NATs.  Default is false.

       ftp:list-empty-ok (boolean)
              if set to false, empty lists from LIST command will be treated as incorrect, and another  method  (NLST)  will  be
              used.

       ftp:list-options (string)
              sets  options  which  are always appended to LIST command. It can be useful to set this to `-a' if server does not
              show dot (hidden) files by default.  Default is empty.

       ftp:nop-interval (seconds)
              delay between NOOP commands when downloading tail of a file. This is useful for ftp servers which  send  "Transfer
              complete" message before flushing data transfer. In such cases NOOP commands can prevent connection timeout.

       ftp:passive-mode (boolean)
              sets  passive  ftp mode. This can be useful if you are behind a firewall or a dumb masquerading router. In passive
              mode lftp uses PASV command, not the PORT command which is used in active mode. In passive mode lftp itself  makes
              the  data  connection to the server; in active mode the server connects to lftp for data transfer. Passive mode is
              the default.

       ftp:port-ipv4 (ipv4 address)
              specifies an IPv4 address to send with PORT command. Default is empty which means to send the address of local end
              of control connection.

       ftp:port-range (from-to)
              allowed  port  range  for  active  mode.   Format  is min-max, or `full' or `any' to indicate any port. Default is
              `full'.

       ftp:prefer-epsv (boolean)
              use EPSV as preferred passive mode. Default is `false'.

       ftp:proxy (URL)
              specifies ftp proxy to use.  To disable proxy set this to empty string. Note that it is an ftp  proxy  which  uses
              ftp  protocol,  not  ftp  over  http. Default value is taken from environment variable ftp_proxy if it starts with
              ``ftp://''. If your ftp proxy requires authentication, specify user name and password in the  URL.   If  ftp:proxy
              starts with http:// then hftp protocol (ftp over http proxy) is used instead of ftp automatically.

       ftp:proxy-auth-type (string)
              When  set  to  ``joined'',  lftp  sends  ``user@proxy_userATftp.org''  as  user  name to proxy, and ``pass-
              word@proxy_password'' as password.

              When set to ``joined-acct'', lftp sends ``userATftp.org proxy_user'' (with space) as user  name  to  proxy.
              The site password is sent as usual and the proxy password is expected in the following ACCT command.

              When set to ``open'', lftp first sends proxy user and proxy password and then ``OPEN ftp.example.org'' followed by
              ``USER user''.  The site password is then sent as usual.

              When set to ``user'' (default), lftp first sends proxy user and proxy password and  then  ``userATftp.org''
              as user name.  The site password is then sent as usual.

              When  set  to  ``proxy-user@host'', lftp first sends ``USER proxy_userATftp.org'', then proxy password. The
              site user and password are then sent as usual.

       ftp:rest-list (boolean)
              allow usage of REST command before LIST command. This might be useful for large directories, but some ftp  servers
              silently ignore REST before LIST.

       ftp:rest-stor (boolean)
              if false, lftp will not try to use REST before STOR. This can be useful for some buggy servers which corrupt (fill
              with zeros) the file if REST followed by STOR is used.

       ftp:retry-530 (regex)
              Retry on server reply 530 for PASS command if text matches this regular expression.  This setting should be useful
              to distinguish between overloaded server (temporary condition) and incorrect password (permanent condition).

       ftp:retry-530-anonymous (regex)
              Additional regular expression for anonymous login, like ftp:retry-530.

       ftp:site-group (string)
              Send  this string in SITE GROUP command after login. The result is ignored.  The closure for this setting has for-
              mat user@host.

       ftp:skey-allow (boolean)
              allow sending skey/opie reply if server appears to support it. On by default.

       ftp:skey-force (boolean)
              do not send plain text password over the network, use skey/opie instead. If skey/opie  is  not  available,  assume
              failed login. Off by default.

       ftp:ssl-allow (boolean)
              if true, try to negotiate SSL connection with ftp server for non-anonymous access. Default is true. This and other
              ssl settings are only available if lftp was compiled with an ssl/tls library.

       ftp:ssl-data-use-keys (boolean)
              if true, lftp loads ssl:key-file for protected data connection too. When false, it does not, and  the  server  can
              match data and control connections by session ID.  Default is true.

       ftp:ssl-force (boolean)
              if true, refuse to send password in clear when server does not support SSL.  Default is false.

       ftp:ssl-protect-data (boolean)
              if true, request ssl connection for data transfers. This is cpu-intensive but provides privacy. Default is false.

       ftp:ssl-protect-fxp (boolean)
              if  true,  request ssl connection for data transfer between two ftp servers in FXP mode. CPSV or SSCN command will
              be used in that case. If ssl connection fails for some reason, lftp would  try  unprotected  FXP  transfer  unless
              ftp:ssl-force is set for any of the two servers. Default is false.

       ftp:ssl-protect-list (boolean)
              if true, request ssl connection for file list transfers. Default is true.

       ftp:ssl-use-ccc (boolean)
              if true, lftp would issue CCC command after logon, thus disable ssl protection layer on control connection.

       ftp:stat-interval (time interval)
              interval between STAT commands. Default is 1 second.

       ftp:sync-mode (boolean)
              if true, lftp will send one command at a time and wait for response. This might be useful if you are using a buggy
              ftp server or router. When it is off, lftp sends a pack of commands and waits for responses - it speeds up  opera-
              tion  when  round  trip time is significant.  Unfortunately it does not work with all ftp servers and some routers
              have troubles with it, so it is on by default.

       ftp:timezone (string)
              Assume this  timezone  for  time  in  listings  returned  by  LIST  command.   This  setting  can  be  GMT  offset
              [+|-]HH[:MM[:SS]]  or  any  valid  TZ value (e.g. Europe/Moscow or MSK-3MSD,M3.5.0,M10.5.0/3). The default is GMT.
              Set it to an empty value to assume local timezone specified by environment variable TZ.

       ftp:trust-feat (string)
              When true, assume that FEAT returned data are correct and don't use common protocol extensions  like  SIZE,  MDTM,
              REST if they are not listed.  Default is false.

       ftp:use-abor (boolean)
              if false, lftp does not send ABOR command but closes data connection immediately.

       ftp:use-allo (boolean)
              when true (default), lftp sends ALLO command before uploading a file.

       ftp:use-feat (boolean)
              when true (default), lftp uses FEAT command to determine extended features of ftp server.

       ftp:use-fxp (boolean)
              if true, lftp will try to set up direct connection between two ftp servers.

       ftp:use-hftp (boolean)
              when ftp:proxy points to an http proxy, this setting selects hftp method (GET, HEAD) when true, and CONNECT method
              when false. Default is true.

       ftp:use-ip-tos (boolean)
              when true, lftp uses IPTOS_LOWDELAY for control connection and IPTOS_THROUGHPUT for data connections.

       ftp:lang (boolean)
              the language selected with LANG command, if supported as indicated by FEAT response. Default is empty which  means
              server default.

       ftp:use-mdtm (boolean)
              when true (default), lftp uses MDTM command to determine file modification time.

       ftp:use-mdtm-overloaded (boolean)
              when true, lftp uses two argument MDTM command to set file modification time on uploaded files. Default is false.

       ftp:use-site-idle (boolean)
              when true, lftp sends `SITE IDLE' command with net:idle argument. Default is false.

       ftp:use-site-utime (boolean)
              when  true, lftp sends 5-argument `SITE UTIME' command to set file modification time on uploaded files. Default is
              true.

       ftp:use-site-utime2 (boolean)
              when true, lftp sends 2-argument `SITE UTIME' command to set file modification time on uploaded files. Default  is
              true.  If 5-argument `SITE UTIME' is also enabled, 2-argument command is tried first.

       ftp:use-size (boolean)
              when true (default), lftp uses SIZE command to determine file size.

       ftp:use-stat (boolean)
              if  true,  lftp  sends  STAT  command  in  FXP  mode transfer to know how much data has been transferred. See also
              ftp:stat-interval. Default is true.

       ftp:use-stat-for-list (boolean)
              when true, lftp uses STAT instead of LIST command. By default `.' is used  as  STAT  argument.  Using  STAT,  lftp
              avoids  creating  data  connection  for  directory  listing.  Some  servers  require special options for STAT, use
              ftp:list-options to specify them (e.g. -la).

       ftp:use-telnet-iac (boolean)
              when true (default), lftp uses TELNET IAC command and follows TELNET protocol as specified in RFC959. When  false,
              it  does  not  follow TELNET protocol and thus does not double 255 (0xFF, 0377) character and does not prefix ABOR
              and STAT commands with TELNET IP+SYNCH signal.

       ftp:use-tvfs (tri-boolean)
              When set to auto, usage of TVFS feature depends on FEAT server reply. Otherwise this setting tells whether use  it
              or not. In short, if a server supports TVFS feature then it uses unix-like paths.

       ftp:use-quit (boolean)
              if true, lftp sends QUIT before disconnecting from ftp server. Default is true.

       ftp:verify-address (boolean)
              verify  that  data connection comes from the network address of control connection peer. This can possibly prevent
              data connection spoofing which can lead to data corruption. Unfortunately, this can fail for certain  ftp  servers
              with  several  network  interfaces,  when  they  do  not set outgoing address on data socket, so it is disabled by
              default.

       ftp:verify-port (boolean)
              verify that data connection has port 20 (ftp-data) on its remote end.  This can possibly prevent  data  connection
              spoofing  by  users of remote host. Unfortunately, too many windows and even unix ftp servers forget to set proper
              port on data connection, thus this check is off by default.

       ftp:web-mode (boolean)
              disconnect after closing data connection. This can be useful for totally broken ftp servers. Default is false.

       ftps:initial-prot (string)
              specifies initial PROT setting for FTPS connections. Should be one of: C, S, E, P,  or  empty.  Default  is  empty
              which  means  unknown,  so that lftp will use PROT command unconditionally. If PROT command turns out to be unsup-
              ported, then Clear mode would be assumed.

       hftp:cache (boolean)
              allow server/proxy side caching for ftp-over-http protocol.

       hftp:cache-control (string)
              specify corresponding HTTP request header.

       hftp:proxy (URL)
              specifies http proxy for ftp-over-http protocol (hftp). The protocol hftp cannot work without a http proxy,  obvi-
              ously.   Default  value is taken from environment variable ftp_proxy if it starts with ``http://'', otherwise from
              environment variable http_proxy.  If your ftp proxy requires authentication, specify user name and password in the
              URL.

       hftp:use-authorization (boolean)
              if set to off, lftp will send password as part of URL to the proxy. This may be required for some proxies (e.g. M-
              soft). Default is on, and lftp will send password as part of Authorization header.

       hftp:use-head (boolean)
              if set to off, lftp will try to use `GET' instead of `HEAD' for hftp protocol.  While this is slower, it may allow
              lftp to work with some proxies which don't understand or mishandle ``HEAD ftp://'' requests.

       hftp:use-mkcol (boolean)
              if  set to off, lftp will try to use `PUT' instead of `MKCOL' to create directories with hftp protocol. Default is
              off.

       hftp:use-propfind (boolean)
              if set to off, lftp will not try to use `PROPFIND' to get directory contents with  hftp  protocol  and  use  `GET'
              instead. Default is off.

       hftp:use-type (boolean)
              If  set  to  off,  lftp won't try to append `;type=' to URLs passed to proxy.  Some broken proxies don't handle it
              correctly. Default is on.

       http:accept, http:accept-charset, http:accept-language (string)
              specify corresponding HTTP request headers.

       http:authorization (string)
              the authorization to use by default, when no user is specified. The format is ``user:password''. Default is  empty
              which means no authorization.

       http:cache (boolean)
              allow server/proxy side caching.

       http:cache-control (string)
              specify corresponding HTTP request header.

       http:cookie (string)
              send this cookie to server. A closure is useful here:
                   set cookie/www.somehost.com "param=value"

       http:post-content-type (string)
              specifies  value  of Content-Type http request header for POST method.  Default is ``application/x-www-form-urlen-
              coded''.

       http:proxy (URL)
              specifies http proxy. It is used when lftp works over http protocol.  Default  value  is  taken  from  environment
              variable http_proxy.  If your proxy requires authentication, specify user name and password in the URL.

       http:put-method (PUT or POST)
              specifies which http method to use on put.

       http:put-content-type (string)
              specifies value of Content-Type http request header for PUT method.

       http:referer (string)
              specifies  value for Referer http request header. Single dot `.' expands to current directory URL. Default is `.'.
              Set to empty string to disable Referer header.

       http:set-cookies (boolean)
              if true, lftp modifies http:cookie variables when Set-Cookie header is received.

       http:use-mkcol (boolean)
              if set to off, lftp will try to use `PUT' instead of `MKCOL' to create directories with http protocol. Default  is
              on.

       http:use-propfind (boolean)
              if  set  to  off,  lftp  will not try to use `PROPFIND' to get directory contents with http protocol and use `GET'
              instead. Default is on.

       http:user-agent (string)
              the string lftp sends in User-Agent header of HTTP request.

       https:proxy (string)
              specifies https proxy. Default value is taken from environment variable https_proxy.

       mirror:dereference (boolean)
              when true, mirror will dereference symbolic links by default.  You can override  it  by  --no-dereference  option.
              Default if false.

       mirror:exclude-regex (regex)
              specifies default exclusion pattern. You can override it by --include option.

       mirror:include-regex (regex)
              specifies  default  inclusion  pattern. It is used just after mirror:exclude-regex is applied. It is never used if
              mirror:exclude-regex is empty.

       mirror:no-empty-dirs (boolean)
              when true, mirror doesn't create empty directories (like --no-empty-dirs option).

       mirror:order (list of patterns)
              specifies order of file transfers. E.g. setting this to "*.sfv *.sum" makes  mirror  to  transfer  files  matching
              *.sfv first, then ones matching *.sum and then all other files. To process directories after other files, add "*/"
              to end of pattern list.

       mirror:parallel-directories (boolean)
              if true, mirror will start processing of several directories in parallel when it is in parallel  mode.  Otherwise,
              it will transfer files from a single directory before moving to other directories.

       mirror:parallel-transfer-count (number)
              specifies  number of parallel transfers mirror is allowed to start. Default is 1.  You can override it with --par-
              allel option.

       mirror:set-permissions (boolean)
              When set to off, mirror won't try to copy file and directory permissions.  You can override it by --perms  option.
              Default is on.

       mirror:skip-noaccess (boolean)
              when  true, mirror does not try to download files which are obviously unaccessible by the permission mask. Defaule
              is false.

       mirror:use-pget-n (number)
              specifies -n option for pget command used to transfer every single file under mirror. Default is 1 which  disables
              pget.

       module:path (string)
              colon  separated  list  of  directories  to look for modules. Can be initialized by environment variable LFTP_MOD-
              ULE_PATH. Default is `PKGLIBDIR/VERSION:PKGLIBDIR'.

       net:connection-limit (number)
              maximum number of concurrent connections to the same site. 0 means unlimited.

       net:connection-takeover (boolean)
              if true, foreground connections have priority over background ones and can interrupt background transfers to  com-
              plete a foreground operation.

       net:idle (time interval)
              disconnect from server after this idle time. Default is 3 minutes.

       net:limit-rate (bytes per second)
              limit transfer rate on data connection. 0 means unlimited. You can specify two numbers separated by colon to limit
              download and upload rate separately.

       net:limit-max (bytes)
              limit accumulating of unused limit-rate. 0 means twice of limit-rate.

       net:limit-total-rate (bytes per second)
              limit transfer rate of all connections in sum. 0 means unlimited. You can specify two numbers separated  by  colon
              to  limit  download  and upload rate separately.  Note that sockets have receive buffers on them, this can lead to
              network link load higher than this rate limit just after transfer beginning. You can try to set  net:socket-buffer
              to relatively small value to avoid this.

       net:limit-total-max (bytes)
              limit accumulating of unused limit-total-rate. 0 means twice of limit-total-rate.

       net:max-retries (number)
              the maximum number of sequential retries of an operation without success.  0 means unlimited.

       net:no-proxy (string)
              contains  comma  separated  list of domains for which proxy should not be used.  Default is taken from environment
              variable no_proxy.

       net:persist-retries (number)
              ignore this number of hard errors. Useful to login to buggy ftp servers which reply 5xx when  there  is  too  many
              users.

       net:reconnect-interval-base (seconds)
              sets  the  base  minimal time between reconnects. Actual interval depends on net:reconnect-interval-multiplier and
              number of attempts to perform an operation.

       net:reconnect-interval-max (seconds)
              sets maximum reconnect interval. When current interval after multiplication  by  net:reconnect-interval-multiplier
              reachs this value (or exceeds it), it is reset back to net:reconnect-interval-base.

       net:reconnect-interval-multiplier (real number)
              sets multiplier by which base interval is multiplied each time new attempt to perform an operation fails. When the
              interval reachs maximum, it is reset to base value. See  net:reconnect-interval-base  and  net:reconnect-interval-
              max.

       net:socket-bind-ipv4 (ipv4 address)
              bind  all  IPv4  sockets  to  specified address. This can be useful to select a specific network interface to use.
              Default is empty which means not to bind IPv4 sockets, operating system will choose an address automatically using
              routing table.

       net:socket-bind-ipv6 (ipv6 address)
              the same for IPv6 sockets.

       net:socket-buffer (bytes)
              use given size for SO_SNDBUF and SO_RCVBUF socket options. 0 means system default.

       net:socket-maxseg (bytes)
              use given size for TCP_MAXSEG socket option. Not all operating systems support this option, but linux does.

       net:timeout (time interval)
              sets the network protocol timeout.

       pget:default-n (number)
              default number of chunks to split the file to in pget.

       pget:save-status (time interval)
              save pget transfer status this often. Set to `never' to disable saving of the status file.  The status is saved to
              a file with suffix .lftp-pget-status.

       sftp:charset (string)
              the character set used by sftp server in file names and file listings.  Default is empty which means the  same  as
              local. This setting is only used for sftp protocol version prior to 4. Version 4 and later always use UTF-8.

       sftp:connect-program (string)
              the  program  to  use  for connecting to remote server. It should support `-l' option for user name, `-p' for port
              number. Default is `ssh -a -x'. You can set it to `rsh', for example.

       sftp:max-packets-in-flight (number)
              The maximum number of unreplied packets in flight. If round trip time is significant, you should increase this and
              size-read/size-write. Default is 16.

       sftp:protocol-version (number)
              The protocol number to negotiate. Default is 4. The actual protocol version used depends on server.

       sftp:server-program (string)
              The server program implementing SFTP protocol. If it does not contain a slash `/', it is considered a ssh2 subsys-
              tem and -s option is used when starting connect-program.  Default is `sftp'. You can use rsh  as  transport  level
              protocol like this:
                   set sftp:connect-program rsh
                   set sftp:server-program /usr/libexec/openssh/sftp-server
              Similarly you can run sftp over ssh1.

       sftp:size-read (number)
              Block size for reading. Default is 0x8000.

       sftp:size-write (number)
              Block size for writing. Default is 0x8000.

       ssl:ca-file (path to file)
              use specified file as Certificate Authority certificate.

       ssl:ca-path (path to directory)
              use specified directory as Certificate Authority certificate repository (OpenSSL only).

       ssl:check-hostname (boolean)
              when true, lftp checks if the host name used to connect to the server corresponds to the host name in its certifi-
              cate.

       ssl:crl-file (path to file)
              use specified file as Certificate Revocation List certificate.

       ssl:crl-path (path to directory)
              use specified directory as Certificate Revocation List certificate repository (OpenSSL only).

       ssl:key-file (path to file)
              use specified file as your private key.

       ssl:cert-file (path to file)
              use specified file as your certificate.

       ssl:verify-certificate (boolean)
              if set to yes, then verify server's certificate to be signed by a known Certificate Authority and not be  on  Cer-
              tificate Revocation List.

       torrent:ip (ipv4 address)
              IP address to send to the tracker. Specify it if you are using an http proxy.

       torrent:ipv6 (ipv6 address)
              IPv6 address to send to the tracker. By default, first found global unicast address is used.

       torrent:max-peers (number)
              maximum number of peers for a torrent. Least used peers are removed to maintain this limit.

       torrent:port-range (from-to)
              port range to accept connections on. A single port is selected when a torrent starts.

       torrent:seed-max-time (time interval)
              maximum  seed  time. After this period of time a complete torrent shuts down independently of ratio. It can be set
              to infinity if needed.

       torrent:seed-min-peers (number)
              minimum number of peers when the torrent is complete. If there are less, new peers are actively searched for.

       torrent:stop-on-ratio (real number)
              torrent stops when it's complete and ratio reached this number.

       xfer:clobber (boolean)
              if this setting is off, get commands will not overwrite existing files and generate an error instead.

       xfer:destination-directory (path or URL to directory)
              This setting is used as default -O option for get and mget commands.  Default is empty, which means current direc-
              tory (no -O option).

       xfer:disk-full-fatal (boolean)
              when  true,  lftp aborts a transfer if it cannot write target file because of full disk or quota; when false, lftp
              waits for disk space to be freed.

       xfer:eta-period (seconds)
              the period over which weighted average rate is calculated to produce ETA.

       xfer:eta-terse (boolean)
              show terse ETA (only high order parts). Default is true.

       xfer:log (boolean)
              when true, lftp logs transfers to a file from xfer:log-file setting.

       xfer:log-file (boolean)
              the file to log transfers to. Default is ~/.lftp/transfer_log.

       xfer:make-backup (boolean)
              when true, lftp renames pre-existing file adding ``~'' suffix instead of overwriting it.

       xfer:max-redirections (number)
              maximum number of redirections. This can be useful for downloading over HTTP.  0 prohibits redirections.

       xfer:rate-period (seconds)
              the period over which weighted average rate is calculated to be shown.

       xfer:verify (boolean)
              when true, verify-command is launched after successful transfer to validate file integrity. Zero exit code of that
              command should indicate correctness of the file.

       xfer:verify-command (string)
              the command to validate file integrity. The only argument is the path to the file.


       The  name of a variable can be abbreviated unless it becomes ambiguous. The prefix before `:' can be omitted too. You can
       set one variable several times for different closures, and thus you can get a particular settings for  particular  state.
       The closure is to be specified after variable name separated with slash `/'.

       The  closure for `dns:', `net:', `ftp:', `http:', `hftp:' domain variables is currently just the host name as you specify
       it in the `open' command (with some exceptions where closure is  meaningless,  e.g.  dns:cache-size).   For  some  `cmd:'
       domain  variables the closure is current URL without path.  For other variables it is not currently used. See examples in
       the sample lftp.conf.

       Certain commands and settings take a time interval parameter. It has the format Nx[Nx...], where N is time amount (float-
       ing point) and x is time unit: d - days, h - hours, m - minutes, s - seconds. Default unit is second. E.g. 5h30m or 5.5h.
       Also the interval can be `infinity', `inf', `never', `forever' - it means infinite interval. E.g. `sleep forever' or `set
       dns:cache-expire never'.

       Boolean settings can be one of (true, on, yes, 1, +) for a True value or one of (false, off, no, 0, -) for a False value.

       Tri-boolean settings have either a boolean value or `auto'.

       Integer  settings  can  have  a  suffix: k - kibi, m - mebi, g - gigi, etc.  They can also have a prefix: 0 - octal, 0x -
       hexadecimal.


   FTP asynchronous mode (pipelining)
       Lftp can speed up ftp operations by sending several commands at once and then checking all the responses.  See  ftp:sync-
       mode  variable.  Sometimes this does not work, thus synchronous mode is the default. You can try to turn synchronous mode
       off and see if it works for you. It is known that some network software dealing with  address  translation  works  incor-
       rectly in the case of several FTP commands in one network packet.

       RFC959  says:  ``The  user-process sending another command before the completion reply would be in violation of protocol;
       but server-FTP processes should queue any commands that arrive while a preceding command is in progress''. Also,  RFC1123
       says:  ``Implementors MUST NOT assume any correspondence between READ boundaries on the control connection and the Telnet
       EOL sequences (CR LF).'' and ``a single READ from the control connection may include more than one FTP command''.

       So it must be safe to send several commands at once, which speeds up operation a lot and seems to work with all Unix  and
       VMS  based  ftp  servers. Unfortunately, windows based servers often cannot handle several commands in one packet, and so
       cannot some broken routers.


OPTIONS
       -d     Switch on debugging mode.

       -e commands
              Execute given commands and don't exit.

       -p port
              Use the given port to connect.

       -u user[,pass]
              Use the given username and password to connect. Remember to quote the password properly in the shell.   Also  note
              that  it is not secure to specify the password on command line, use ~/.netrc file.  Alternatively you can use ssh-
              based protocols with authorized keys, so you don't have to enter a password.

       -f script_file
              Execute commands in the file and exit.  This option must be used alone without other arguments.

       -c commands
              Execute the given commands and exit. Commands can be separated with a semicolon, `&&' or `||'. Remember  to  quote
              the commands argument properly in the shell.  This option must be used alone without other arguments.


ENVIRONMENT VARIABLES
       The following environment variables are processed by lftp:

       HOME   Used for (local) tilde (`~') expansion

       SHELL  Used by the ! command to determine the shell to run.

       PAGER  This should be the name of the pager to use.  It's used by the more and zmore commands.

       http_proxy, https_proxy
              Used to set initial http:proxy, hftp:proxy and https:proxy variables.

       ftp_proxy
              Used  to  set  initial ftp:proxy or hftp:proxy variables, depending on URL protocol used in this environment vari-
              able.

       no_proxy
              Used to set initial net:no-proxy variable.

       LFTP_MODULE_PATH
              Used to set initial module:path variable.

       LFTP_HOME
              Used to locate the directory that stores user-specific configuration files.  If unset, ~/.lftp will be used.

       LS_COLORS
              used to set initial color:dir-colors variable.


FILES
       /etc/lftp.conf
              system-wide startup file. Actual location depends on --sysconfdir configure option. It  is  /etc  when  prefix  is
              /usr, /usr/local/etc by default.


       ~/.lftp/rc, ~/.lftprc
              These files are executed on lftp startup after /etc/lftp.conf.

       ~/.lftp/log
              The file things are logged to when lftp moves into the background in nohup mode.

       ~/.lftp/transfer_log
              The  file transfers are logged to when xfer:log setting is set to `yes'.  The location can be changed by xfer:log-
              file setting.

       ~/.lftp/bookmarks
              The file is used to store lftp's bookmarks.  See the bookmark command.

       ~/.lftp/cwd_history
              The file is used to store last working directories for each site visited.

       ~/.lftp/bg/
              The directory is used to store named sockets for backgrounded lftp processes.

       ~/.netrc
              The file is consulted to get default login and password to ftp server.  Passwords are also searched here if an URL
              with user name but with no password is used.


SEE ALSO
       ftpd(8), ftp(1)
       RFC854  (telnet), RFC959 (ftp), RFC1123, RFC1945 (http/1.0), RFC2052 (SRV RR), RFC2228 (ftp security extensions), RFC2389
       (ftp FEAT), RFC2428 (ftp/ipv6), RFC2518 (WebDAV), RFC2616 (http/1.1), RFC2617  (http/1.1  authentication),  RFC2640  (ftp
       i18n), RFC4217 (ftp over ssl).
       http://www.ietf.org/internet-drafts/draft-ietf-ftpext-mlst-16.txt (ftp extensions over RFC959),
       http://www.ietf.org/internet-drafts/draft-ietf-secsh-filexfer-10.txt (sftp).
       http://wiki.theory.org/BitTorrentSpecification
       http://www.bittornado.com/docs/multitracker-spec.txt


AUTHOR
       Alexander V. Lukyanov
       lavATyars.net


ACKNOWLEDGMENTS
       This  manual page was originally written by Christoph Lameter <clameterATdebian.org>, for the Debian GNU/Linux system. The
       page was improved and updated later by Nicolas Lichtmaier <nickATFeedback.ar>, James Troup <J.J.TroupATcomp.uk>
       and Alexander V. Lukyanov <lavATyars.net>.



                                                           19 Oct 2011                                                   lftp(1)

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