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ul — do underlining
ul
[options] [ file...
]
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
overstrike, or handles underlining automatically,
ul degenerates
to cat(1). If the terminal
cannot underline, underlining is ignored.
−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
terminalOverrides the terminal type
specified in the environment with TERM
.
−V
, −−version
Display version information and exit.
−h
, −−help
Display help text and exit.
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)).
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.
The ul command is part of the util-linux package and is available from Linux Kernel Archive
Copyright (c) 1980, 1991, 1993 The Regents of the University of California. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. All advertising materials mentioning features or use of this software must display the following acknowledgement: This product includes software developed by the University of California, Berkeley and its contributors. 4. Neither the name of the University nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. (#)ul.1 8.1 (Berkeley) 6/6/93 |