LASTLOG(8)                                         System Management Commands                                         LASTLOG(8)



NAME
       lastlog - reports the most recent login of all users or of a given user

SYNOPSIS
       lastlog [options]

DESCRIPTION
       lastlog formats and prints the contents of the last login log /var/log/lastlog file. The login-name, port, and last login
       time will be printed. The default (no flags) causes lastlog entries to be printed, sorted by their order in /etc/passwd.

OPTIONS
       The options which apply to the lastlog command are:

       -b, --before DAYS
           Print only lastlog records older than DAYS.

       -h, --help
           Display help message and exit.

       -t, --time DAYS
           Print the lastlog records more recent than DAYS.

       -u, --user LOGIN|RANGE
           Print the lastlog record of the specified user(s).

           The users can be specified by a login name, a numerical user ID, or a RANGE of users. This RANGE of users can be
           specified with a min and max values (UID_MIN-UID_MAX), a max value (-UID_MAX), or a min value (UID_MIN-).

       If the user has never logged in the message ** Never logged in** will be displayed instead of the port and time.

       Only the entries for the current users of the system will be displayed. Other entries may exist for users that were
       deleted previously.

NOTE
       The lastlog file is a database which contains info on the last login of each user. You should not rotate it. It is a
       sparse file, so its size on the disk is usually much smaller than the one shown by "ls -l" (which can indicate a really
       big file if you have in passwd users with a high UID). You can display its real size with "ls -s".

FILES
       /var/log/lastlog
           Database times of previous user logins.

CAVEATS
       Large gaps in UID numbers will cause the lastlog program to run longer with no output to the screen (i.e. if in lastlog
       database there is no entries for users with UID between 170 and 800 lastlog will appear to hang as it processes entries
       with UIDs 171-799).



System Management Commands                                 07/24/2009                                                 LASTLOG(8)