1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
.\" Copyright (c) 1991, 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.
.\"
.\" @(#)wc.1 8.2 (Berkeley) 4/19/94
.\" $FreeBSD$
.\"
.Dd June 13, 2002
.Dt WC 1
.Os
.Sh NAME
.Nm wc
.Nd word, line, character, and byte count
.Sh SYNOPSIS
.Nm
.Op Fl clmw
.Op Ar
.Sh DESCRIPTION
The
.Nm
utility displays the number of lines, words, and bytes contained in each
input
.Ar file
(or standard input, by default) to the standard output.
A line is defined as a string of characters delimited by a <newline>
character,
and a word is defined as a string of characters delimited by white space
characters.
White space characters are the set of characters for which the
.Xr isspace 3
function returns true.
If more than one input file is specified, a line of cumulative counts
for all the files is displayed on a separate line after the output for
the last file.
.Pp
The following options are available:
.Bl -tag -width Ds
.It Fl c
The number of bytes in each input file
is written to the standard output.
.It Fl l
The number of lines in each input file
is written to the standard output.
.It Fl m
The number of characters in each input file is written to the standard output.
If the current locale does not support multibyte characters, this
is equivalent to the
.Fl c
option.
.It Fl w
The number of words in each input file
is written to the standard output.
.El
.Pp
When an option is specified,
.Nm
only reports the information requested by that option.
The default action is equivalent to specifying the
.Fl c ,
.Fl l
and
.Fl w
options.
.Pp
If no files are specified, the standard input is used and no
file name is displayed.
.Sh ENVIRONMENT
The
.Ev LANG ,
.Ev LC_ALL
and
.Ev LC_CTYPE
environment variables affect the execution of
.Nm
as described in
.Xr environ 7
when the
.Fl m
option is specified.
.Sh EXAMPLES
Count the number of characters, words and lines in each of the files
.Pa report1
and
.Pa report2
as well as the totals for both:
.Pp
.Dl "wc -mlw report1 report2"
.Sh DIAGNOSTICS
.Ex -std
.Sh SEE ALSO
.Xr isspace 3
.Sh COMPATIBILITY
Historically, the
.Nm
utility was documented to define a word as a ``maximal string of
characters delimited by <space>, <tab> or <newline> characters''.
The implementation, however, didn't handle non-printing characters
correctly so that `` ^D^E '' counted as 6 spaces, while ``foo^D^Ebar''
counted as 8 characters.
.Bx 4
systems after
.Bx 4.3
modified the implementation to be consistent
with the documentation.
This implementation defines a ``word'' in terms of the
.Xr isspace 3
function, as required by
.St -p1003.2 .
.Sh STANDARDS
The
.Nm
function conforms to
.St -p1003.1-2001 .
.Sh HISTORY
A
.Nm
command appeared in
.At v1 .
|