1.\" $OpenBSD: wc.1,v 1.13 2003/06/10 09:12:12 jmc Exp $ 2.\" 3.\" Copyright (c) 1991, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" the Institute of Electrical and Electronics Engineers, Inc. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. Neither the name of the University nor the names of its contributors 18.\" may be used to endorse or promote products derived from this software 19.\" without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31.\" SUCH DAMAGE. 32.\" 33.\" from: @(#)wc.1 8.2 (Berkeley) 4/19/94 34.\" 35.Dd April 19, 1994 36.Dt WC 1 37.Os 38.Sh NAME 39.Nm wc 40.Nd word, line, and byte count 41.Sh SYNOPSIS 42.Nm wc 43.Op Fl c | Fl m 44.Op Fl lw 45.Op Ar file ... 46.Sh DESCRIPTION 47The 48.Nm 49utility reads one or more input text files, and, by 50default, writes the number of lines, words, and bytes 51contained in each input file to the standard output. 52If more than one input file is specified, 53a line of cumulative count(s) for all named files is output on a 54separate line following the last file count. 55.Nm 56considers a word to be a maximal string of characters delimited by 57whitespace. 58Whitespace characters are the set of characters for which the 59.Xr isspace 3 60function returns true. 61.Pp 62The options are as follows: 63.Bl -tag -width Ds 64.It Fl c 65The number of bytes in each input file 66is written to the standard output. 67.It Fl l 68The number of lines in each input file 69is written to the standard output. 70.It Fl m 71The number of characters in each input file 72is written to the standard output. 73.It Fl w 74The number of words in each input file 75is written to the standard output. 76.El 77.Pp 78When an option is specified, 79.Nm 80only reports the information requested by that option. 81The default action is equivalent to the flags 82.Fl clw 83having been specified. 84The 85.Fl c 86and 87.Fl m 88options are mutually exclusive. 89.Pp 90The following operands are available: 91.Bl -tag -width Ds 92.It Ar file 93A pathname of an input file. 94.El 95.Pp 96If no file names are specified, the standard input is used 97and a file name is not output. 98The resulting output is one 99line of the requested count(s) with the cumulative sum 100of all files read in via standard input. 101.Pp 102By default, the standard output contains a line for each 103input file of the form: 104.Bd -literal -offset indent 105lines words bytes file_name 106.Ed 107.Pp 108The counts for lines, words and bytes are integers separated 109by spaces. 110.Pp 111The 112.Nm 113utility exits 0 on success or >0 if an error occurred. 114.Sh SEE ALSO 115.Xr isspace 3 116.Sh STANDARDS 117Historically, the 118.Nm 119utility was documented to define a word as a ``maximal string of 120characters delimited by 121.Aq space , 122.Aq tab 123or 124.Aq newline 125characters''. 126The implementation, however, didn't handle non-printing characters 127correctly so that `` ^D^E '' counted as 6 spaces, while ``foo^D^Ebar'' 128counted as 8 characters. 1294BSD systems after 4.3BSD modified the implementation to be consistent 130with the documentation. 131This implementation defines a 132.Dq word 133in terms of the 134.Xr isspace 3 135function, as required by 136.St -p1003.2-92 . 137.Pp 138The 139.Nm 140utility conforms to 141.St -p1003.2-92 . 142.Sh HISTORY 143A 144.Nm 145utility appeared in 146.At v1 . 147