1335d459dc
Very simple example. Approved by: imp, 0mp, manpages(bcr) Differential Revision: https://reviews.freebsd.org/D25468
53 lines
2.1 KiB
Groff
53 lines
2.1 KiB
Groff
.\" Copyright (c) 1985, 1992, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)rev.1 8.1 (Berkeley) 6/9/93
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.\" $FreeBSD$
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.\"
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.Dd June 27, 2020
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.Dt REV 1
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.Os
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.Sh NAME
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.Nm rev
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.Nd reverse lines of a file
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.Sh SYNOPSIS
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.Nm
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.Op Ar
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.Sh DESCRIPTION
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The
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.Nm
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utility copies the specified files to the standard output, reversing the
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order of characters in every line.
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If no files are specified, the standard input is read.
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.Sh EXAMPLES
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Reverse the text from stdin:
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.Bd -literal -offset indent
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$ echo -e "reverse \et these\entwo lines" | rev
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eseht esrever
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senil owt
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.Ed
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