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112 lines
4.1 KiB
Groff
112 lines
4.1 KiB
Groff
.\" Copyright (c) 1991, 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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.\" @(#)wc.1 8.2 (Berkeley) 4/19/94
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.\" $Id: wc.1,v 1.2 1997/10/03 03:51:24 gdr Exp $
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.\"
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.TH WC 1 "August 1997" "GNO" "Commands and Applications"
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.SH NAME
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.BR wc
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\- word, line, and byte count
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.SH SYNOPSIS
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.BR wc " [" -clw ]
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.IR file " ..."
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.SH DESCRIPTION
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The
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.BR wc
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utility displays the number of lines, words, and bytes contained in each
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input
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.IR file
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(or standard input, by default) to the standard output.
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A line is defined as a string of characters delimited by a <newline>
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character,
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and a word is defined as a string of characters delimited by white space
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characters.
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White space characters are the set of characters for which the
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.BR isspace (3)
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function returns true.
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If more than one input file is specified, a line of cumulative counts
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for all the files is displayed on a separate line after the output for
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the last file.
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.PP
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The following options are available:
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.IP \fB-c\fR
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The number of bytes in each input file
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is written to the standard output.
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.IP \fB-l\fR
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The number of lines in each input file
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is written to the standard output.
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.IP \fB-w\fR
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The number of words in each input file
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is written to the standard output.
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.RE
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.PP
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When an option is specified,
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.BR wc
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only reports the information requested by that option.
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The default action is equivalent to specifying all of the flags.
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.LP
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If no files are specified, the standard input is used and no
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file name is displayed.
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.LP
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The
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.BR wc
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utility exits 0 on success, and >0 if an error occurs.
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.SH VERSION
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This manual page documents
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.BR wc
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version 2.0.
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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 isspace (3)
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.SH COMPATIBILITY
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Historically, the
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.BR wc
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utility was documented to define a word as a ``maximal string of
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characters delimited by <space>, <tab> or <newline> characters''.
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The implementation, however, didn't handle non-printing characters
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correctly so that `` ^D^E '' counted as 6 spaces, while ``foo^D^Ebar''
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counted as 8 characters.
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4BSD systems after 4.3BSD modified the implementation to be consistent
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with the documentation.
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This implementation defines a ``word'' in terms of the
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.BR isspace (3)
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function, as required by POSIX.2.
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.SH STANDARDS
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The
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.BR wc
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function conforms to POSIX.2.
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