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114 lines
3.6 KiB
Groff
114 lines
3.6 KiB
Groff
.\" Copyright (c) 1989, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" the Institute of Electrical and Electronics Engineers, Inc.
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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. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. 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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.\" @(#)cat.1 8.3 (Berkeley) 5/2/95
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.\" $Id: cat.1,v 1.1 1997/09/17 05:29:24 gdr Exp $
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.\"
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.TH CAT 1 "August 1997" "GNO" "Commands and Applications"
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.SH NAME
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.BR cat
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\- concatenate and print files
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.SH SYNOPSIS
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.BR cat " [" -benstuv ]
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.IR file \0...
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.SH DESCRIPTION
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The
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.BR cat
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utility reads files sequentially, writing them to the standard output.
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The
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.IR file
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operands are processed in command line order.
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A single dash represents the standard input.
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.LP
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.SS OPTIONS
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.IP \fB-b\fR
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Implies the
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.B "-n"
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option but doesn't number blank lines.
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.IP \fB-e\fR
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Implies the
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.B "-v"
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option, and displays a dollar sign (\fB$\fR)
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at the end of each line
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as well.
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.IP \fB-n\fR
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Number the output lines, starting at 1.
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.IP \fB-s\fR
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Squeeze multiple adjacent empty lines, causing the output to be
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single spaced.
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.IP \fB-t\fR
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Implies the
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.B -v
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option, and displays tab characters as
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.B ^I
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as well.
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.IP \fB-u\fR
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The
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.B -u
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option guarantees that the output is unbuffered.
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.IP \fB-v\fR
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Displays non-printing characters so they are visible.
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Control characters print as
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.B ^X
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for control-X; the delete
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character (octal 0177) prints as
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.B ^?
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Non-ascii characters (with the high bit set) are printed as
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.B M-
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(for meta) followed by the character for the low 7 bits.
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.RE
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.LP
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The
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.BR cat
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utility exits 0 on success, and >0 if an error occurs.
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.SH WARNINGS
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Because of the shell language mechanism used to perform output
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redirection, the command
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.IP
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.B "cat file1 file2 > file1"
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.PP
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will cause the original data in file1 to be destroyed!
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Instead use
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.IP
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.B "cat file2 >> file1"
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.SH ATTRIBUTIONS
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This command was ported from FreeBSD source code
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for distribution with GNO/ME 2.0.6.
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.SH SEE ALSO
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.BR head (1),
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.BR more (1),
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.BR pr (1),
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.BR tail (1),
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.BR vis (1)
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