diff options
author | Theo de Raadt <deraadt@cvs.openbsd.org> | 1995-10-18 08:53:40 +0000 |
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committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 1995-10-18 08:53:40 +0000 |
commit | d6583bb2a13f329cf0332ef2570eb8bb8fc0e39c (patch) | |
tree | ece253b876159b39c620e62b6c9b1174642e070e /bin/cat/cat.1 |
initial import of NetBSD tree
Diffstat (limited to 'bin/cat/cat.1')
-rw-r--r-- | bin/cat/cat.1 | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/bin/cat/cat.1 b/bin/cat/cat.1 new file mode 100644 index 00000000000..bbcee6741ee --- /dev/null +++ b/bin/cat/cat.1 @@ -0,0 +1,122 @@ +.\" $NetBSD: cat.1,v 1.12 1995/09/27 05:38:55 cgd Exp $ +.\" +.\" Copyright (c) 1989, 1990, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the Institute of Electrical and Electronics Engineers, Inc. +.\" +.\" 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. +.\" +.\" @(#)cat.1 8.3 (Berkeley) 5/2/95 +.\" +.Dd May 2, 1995 +.Dt CAT 1 +.Os BSD 3 +.Sh NAME +.Nm cat +.Nd concatenate and print files +.Sh SYNOPSIS +.Nm cat +.Op Fl benstuv +.Op Fl +.Op Ar +.Sh DESCRIPTION +The +.Nm cat +utility reads files sequentially, writing them to the standard output. +The +.Ar file +operands are processed in command line order. +A single dash represents the standard input. +.Pp +The options are as follows: +.Bl -tag -width Ds +.It Fl b +Implies the +.Fl n +option but doesn't number blank lines. +.It Fl e +Implies the +.Fl v +option, and displays a dollar sign +.Pq Ql \&$ +at the end of each line +as well. +.It Fl n +Number the output lines, starting at 1. +.It Fl s +Squeeze multiple adjacent empty lines, causing the output to be +single spaced. +.It Fl t +Implies the +.Fl v +option, and displays tab characters as +.Ql ^I +as well. +.It Fl u +The +.Fl u +option guarantees that the output is unbuffered. +.It Fl v +Displays non-printing characters so they are visible. +Control characters print as +.Ql ^X +for control-X; the delete +character (octal 0177) prints as +.Ql ^? +Non-ascii characters (with the high bit set) are printed as +.Ql M- +(for meta) followed by the character for the low 7 bits. +.El +.Pp +The +.Nm cat +utility exits 0 on success, and >0 if an error occurs. +.Sh BUGS +Because of the shell language mechanism used to perform output +redirection, the command +.Dq Li cat file1 file2 > file1 +will cause the original data in file1 to be destroyed! +.Sh SEE ALSO +.Xr head 1 , +.Xr more 1 , +.Xr pr 1 , +.Xr tail 1 , +.Xr vis 1 +.Rs +.%A Rob Pike +.%T "UNIX Style, or cat -v Considered Harmful" +.%J "USENIX Summer Conference Proceedings" +.%D 1983 +.Re +.Sh HISTORY +A +.Nm +utility appeared in Version 6 AT&T UNIX. |