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OpenDarwin 7.2.1 - man page for wc (opendarwin section 1)

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WC(1)				   BSD General Commands Manual				    WC(1)

NAME
     wc -- word, line, character, and byte count

SYNOPSIS
     wc [-clmw] [file ...]

DESCRIPTION
     The wc utility displays the number of lines, words, and bytes contained in each input 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 charac-
     ters delimited by white space characters.	White space characters are the set of characters
     for which the iswspace(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 out-
     put for the last file.

     The following options are available:

     -c      The number of bytes in each input file is written to the standard output.

     -l      The number of lines in each input file is written to the standard output.

     -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
	     -c option.

     -w      The number of words in each input file is written to the standard output.

     When an option is specified, wc only reports the information requested by that option.  The
     default action is equivalent to specifying the -c, -l and -w options.

     If no files are specified, the standard input is used and no file name is displayed.

ENVIRONMENT
     The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of wc as described
     in environ(7).

EXAMPLES
     Count the number of characters, words and lines in each of the files report1 and report2 as
     well as the totals for both:

	   wc -mlw report1 report2

DIAGNOSTICS
     The wc utility exits 0 on success, and >0 if an error occurs.

SEE ALSO
     iswspace(3)

COMPATIBILITY
     Historically, the wc utility was documented to define a word as a ``maximal string of char-
     acters 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.  4BSD systems after 4.3BSD modified the imple-
     mentation to be consistent with the documentation.  This implementation defines a ``word''
     in terms of the iswspace(3) function, as required by IEEE Std 1003.2 (``POSIX.2'').

STANDARDS
     The wc utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'').

HISTORY
     A wc command appeared in Version 1 AT&T UNIX.

BSD					  June 13, 2002 				      BSD
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