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UL(1) User Commands UL(1)
NAME
ul - do underlining
SYNOPSIS
ul [options] [file ...]
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 capable of a standout mode, then that is used instead. If the terminal can over-
strike, or handles underlining automatically, ul degenerates to cat(1). If the terminal
cannot underline, underlining is ignored.
OPTIONS
-i, --indicated
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, -T, --terminal terminal
Overrides the terminal type specified in the environment with TERM.
-V, --version
Display version information and exit.
-h, --help
Display a help text and exit.
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
colcrt(1), login(1), man(1), nroff(1), setenv(1), terminfo(5)
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 package and is available from Linux Kernel
Archive <ftp://ftp.kernel.org/pub/linux/utils/util-linux/>.
util-linux September 2011 UL(1)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2024-04-18 06:53 @3.149.233.72 CrawledBy claudebot