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+.\" 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
+.\"
+.TH UL "1" "September 2011" "util-linux" "User Commands"
+.SH NAME
+ul \- do underlining
+.SH SYNOPSIS
+.BR ul " [options]"
+.RI [ file ...]
+.SH DESCRIPTION
+.B 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
+.BR TERM .
+The
+.I 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,
+.B ul
+degenerates to
+.BR cat (1).
+If the terminal cannot underline, underlining is ignored.
+.SH OPTIONS
+.TP
+\fB\-i\fR, \fB\-\-indicated\fR
+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
+.B nroff
+output stream on a crt-terminal.
+.TP
+\fB\-t\fR, \fB\-T\fR, \fB\-\-terminal\fR \fIterminal\fR
+Override the environment variable
+.B TERM
+with the specified
+.I terminal
+type.
+.TP
+\fB\-V\fR, \fB\-\-version\fR
+Display version information and exit.
+.TP
+\fB\-h\fR, \fB\-\-help\fR
+Display help text and exit.
+.SH ENVIRONMENT
+The following environment variable is used:
+.TP
+.B TERM
+The
+.B TERM
+variable is used to relate a tty device with its device capability
+description (see
+.BR terminfo (5)).
+.B TERM
+is set at login time, either by the default terminal type specified in
+.I /etc/ttys
+or as set during the login process by the user in their
+.B login
+file (see
+.BR setenv (3)).
+.SH HISTORY
+The
+.B ul
+command appeared in 3.0BSD.
+.SH BUGS
+.B 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.
+.SH SEE ALSO
+.BR colcrt (1),
+.BR login (1),
+.BR man (1),
+.BR nroff (1),
+.BR setenv (3),
+.BR terminfo (5)
+.SH AVAILABILITY
+The ul command is part of the util-linux package and is available from
+.UR https://\:www.kernel.org\:/pub\:/linux\:/utils\:/util-linux/
+Linux Kernel Archive
+.UE .