Annotation of src/usr.bin/wc/wc.1, Revision 1.27
1.27 ! schwarze 1: .\" $OpenBSD: wc.1,v 1.26 2015/12/08 01:00:44 schwarze Exp $
1.5 millert 2: .\"
3: .\" Copyright (c) 1991, 1993
4: .\" The Regents of the University of California. All rights reserved.
1.1 deraadt 5: .\"
6: .\" This code is derived from software contributed to Berkeley by
7: .\" the Institute of Electrical and Electronics Engineers, Inc.
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10: .\" modification, are permitted provided that the following conditions
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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.
1.12 millert 17: .\" 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 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
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1.5 millert 33: .\" from: @(#)wc.1 8.2 (Berkeley) 4/19/94
1.1 deraadt 34: .\"
1.27 ! schwarze 35: .Dd $Mdocdate: December 8 2015 $
1.1 deraadt 36: .Dt WC 1
37: .Os
38: .Sh NAME
39: .Nm wc
1.14 jmc 40: .Nd word, line, and byte or character count
1.1 deraadt 41: .Sh SYNOPSIS
42: .Nm wc
1.14 jmc 43: .Op Fl c | m
1.16 espie 44: .Op Fl hlw
1.21 sobrado 45: .Op Ar
1.1 deraadt 46: .Sh DESCRIPTION
47: The
1.9 aaron 48: .Nm
1.24 jmc 49: utility reads one or more input text files and, by
1.1 deraadt 50: default, writes the number of lines, words, and bytes
51: contained in each input file to the standard output.
52: If more than one input file is specified,
53: a line of cumulative count(s) for all named files is output on a
1.5 millert 54: separate line following the last file count.
1.9 aaron 55: .Nm
1.11 deraadt 56: considers a word to be a maximal string of characters delimited by
57: whitespace.
1.9 aaron 58: Whitespace characters are the set of characters for which the
1.5 millert 59: .Xr isspace 3
60: function returns true.
1.1 deraadt 61: .Pp
1.7 aaron 62: The options are as follows:
1.1 deraadt 63: .Bl -tag -width Ds
64: .It Fl c
65: The number of bytes in each input file
66: is written to the standard output.
1.16 espie 67: .It Fl h
68: Use unit suffixes: Byte, Kilobyte, Megabyte, Gigabyte, Terabyte,
69: Petabyte, and Exabyte in order to reduce the number of digits to four or fewer
70: using powers of 2 for sizes (K=1024, M=1048576, etc.).
1.1 deraadt 71: .It Fl l
72: The number of lines in each input file
73: is written to the standard output.
74: .It Fl m
1.26 schwarze 75: Count characters instead of bytes, and use
76: .Xr iswspace 3
77: instead of
78: .Xr isspace 3 .
1.1 deraadt 79: .It Fl w
80: The number of words in each input file
81: is written to the standard output.
82: .El
83: .Pp
84: When an option is specified,
1.9 aaron 85: .Nm
1.5 millert 86: only reports the information requested by that option.
87: The default action is equivalent to the flags
1.1 deraadt 88: .Fl clw
1.9 aaron 89: having been specified.
1.1 deraadt 90: .Pp
1.5 millert 91: If no file names are specified, the standard input is used
1.10 aaron 92: and a file name is not output.
93: The resulting output is one
1.1 deraadt 94: line of the requested count(s) with the cumulative sum
95: of all files read in via standard input.
96: .Pp
97: By default, the standard output contains a line for each
98: input file of the form:
99: .Bd -literal -offset indent
100: lines words bytes file_name
101: .Ed
102: .Pp
1.14 jmc 103: The counts for lines, words, and bytes
104: .Pq or characters
105: are integers separated by spaces.
1.26 schwarze 106: .Sh ENVIRONMENT
107: .Bl -tag -width LC_CTYPE
108: .It Ev LC_CTYPE
1.27 ! schwarze 109: The character encoding
! 110: .Xr locale 1 .
! 111: It decides which byte sequences form characters.
1.26 schwarze 112: If unset or set to
113: .Qq C ,
114: .Qq POSIX ,
115: or an unsupported value,
116: .Fl m
117: has the same effect as
118: .Fl c .
119: .El
1.22 jmc 120: .Sh EXIT STATUS
1.19 sobrado 121: .Ex -std wc
1.5 millert 122: .Sh SEE ALSO
123: .Xr isspace 3
1.13 jmc 124: .Sh STANDARDS
1.17 jmc 125: The
126: .Nm
127: utility is compliant with the
1.20 jmc 128: .St -p1003.1-2008
1.26 schwarze 129: specification.
1.17 jmc 130: .Pp
131: The flag
132: .Op Fl h
133: is an extension to that specification.
1.9 aaron 134: .Sh HISTORY
135: A
136: .Nm
137: utility appeared in
138: .At v1 .
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