UL(1)                                              BSD General Commands Manual                                             UL(1)

NAME
     ul -- do underlining

SYNOPSIS
     ul [-i] [-t terminal] [name ...]

DESCRIPTION
     Ul reads the named files (or standard input if none are given) and translates occurrences of underscores to the sequence
     which indicates underlining for the terminal in use, as specified by the environment variable TERM.  The terminfo database
     is read to determine the appropriate sequences for underlining.  If the terminal is incapable of underlining, but is capa-
     ble of a standout mode then that is used instead.  If the terminal can overstrike, or handles underlining automatically, ul
     degenerates to cat(1).  If the terminal cannot underline, underlining is ignored.

     The following options are available:

     -i      Underlining is indicated by a separate line containing appropriate dashes `-'; this is useful when you want to look
             at the underlining which is present in an nroff output stream on a crt-terminal.

     -t terminal
             Overrides the terminal type specified in the environment with terminal.

ENVIRONMENT
     The following environment variable is used:

     TERM  The TERM variable is used to relate a tty device with its device capability description (see terminfo(5)).  TERM is
           set at login time, either by the default terminal type specified in /etc/ttys or as set during the login process by
           the user in their login file (see setenv(1)).

SEE ALSO
     man(1), nroff(1), colcrt(1)

BUGS
     Nroff usually outputs a series of backspaces and underlines intermixed with the text to indicate underlining.  No attempt
     is made to optimize the backward motion.

HISTORY
     The ul command appeared in 3.0BSD.

AVAILABILITY
     The ul command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-
     ng/.

4th Berkeley Distribution                                 June 6, 1993                                 4th Berkeley Distribution