1.\" Copyright (c) 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" the Institute of Electrical and Electronics Engineers, Inc. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 3. All advertising materials mentioning features or use of this software 16.\" must display the following acknowledgement: 17.\" This product includes software developed by the University of 18.\" California, Berkeley and its contributors. 19.\" 4. Neither the name of the University nor the names of its contributors 20.\" may be used to endorse or promote products derived from this software 21.\" without specific prior written permission. 22.\" 23.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33.\" SUCH DAMAGE. 34.\" 35.\" @(#)wc.1 8.2 (Berkeley) 4/19/94 36.\" 37.Dd April 19, 1994 38.Dt WC 1 39.Os 40.Sh NAME 41.Nm wc 42.Nd word, line, and byte count 43.Sh SYNOPSIS 44.Nm wc 45.Op Fl clw 46.Op Ar file ... 47.Sh DESCRIPTION 48The 49.Nm wc 50utility displays the number of lines, words, and bytes contained in each 51input 52.Ar file 53(or standard input, by default) to the standard output. 54A line is defined as a string of characters delimited by a <newline> 55character, 56and a word is defined as a string of characters delimited by white space 57characters. 58White space characters are the set of characters for which the 59.Xr isspace 3 60function returns true. 61If more than one input file is specified, a line of cumulative counts 62for all the files is displayed on a separate line after the output for 63the last file. 64.Pp 65The following options are available: 66.Bl -tag -width Ds 67.It Fl c 68The number of bytes in each input file 69is written to the standard output. 70.It Fl l 71The number of lines 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 wc 80only reports the information requested by that option. 81The default action is equivalent to specifying all of the flags. 82.Pp 83If no files are specified, the standard input is used and no 84file name is displayed. 85.Pp 86The 87.Nm wc 88utility exits 0 on success, and >0 if an error occurs. 89.Sh SEE ALSO 90.Xr isspace 3 91.Sh COMPATIBILITY 92Historically, the 93.Nm wc 94utility was documented to define a word as a ``maximal string of 95characters delimited by <space>, <tab> or <newline> characters''. 96The implementation, however, didn't handle non-printing characters 97correctly so that `` ^D^E '' counted as 6 spaces, while ``foo^D^Ebar'' 98counted as 8 characters. 994BSD systems after 4.3BSD modified the implementation to be consistent 100with the documentation. 101This implementation defines a ``word'' in terms of the 102.Xr isspace 3 103function, as required by 104.St -p1003.2 . 105.Sh STANDARDS 106The 107.Nm wc 108function conforms to 109.St -p1003.2 . 110