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wc(1) [freebsd man page]

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

NAME
wc -- word, line, character, and byte count SYNOPSIS
wc [--libxo] [-Lclmw] [file ...] DESCRIPTION
The wc utility displays the number of lines, words, and bytes contained in each input file, or standard input (if no file is specified) to the standard output. A line is defined as a string of characters delimited by a <newline> character. Characters beyond the final <newline> character will not be included in the line count. 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 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 output for the last file. The following options are available: -L The number of characters in the longest input line is written to the standard output. When more then one file argument is specified, the longest input line of all files is reported as the value of the final ``total''. -c The number of bytes in each input file is written to the standard output. This will cancel out any prior usage of the -m option. -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. This will cancel out any prior usage of 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 order of output always takes the form of line, word, byte, and file name. 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. The prompt will accept input until receiving EOF, or [^D] in most environments. ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of wc as described in environ(7). EXIT STATUS
The wc utility exits 0 on success, and >0 if an error occurs. 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 Find the longest line in a list of files: wc -L file1 file2 file3 | fgrep total COMPATIBILITY
Historically, the wc utility was documented to define a word as a ``maximal string of characters delimited by <space>, <tab> or <newline> characters''. The implementation, however, did not 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 implementation 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''). The -L option is a non-standard FreeBSD extension, compatible with the -L option of the GNU wc utility. SEE ALSO
iswspace(3), libxo(3), xo_parse_args(3) 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
November 4, 2014 BSD

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wc(1)							      General Commands Manual							     wc(1)

NAME
wc - Counts the lines, words, characters, and bytes in a file SYNOPSIS
wc [-c | -m] [-lw] [file...] The wc command counts the lines, words, and characters or bytes in a file, or in the standard input if you do not specify any files, and writes the results to standard output. It also keeps a total count for all named files. STANDARDS
Interfaces documented on this reference page conform to industry standards as follows: wc: XCU5.0 Refer to the standards(5) reference page for more information about industry standards and associated tags. OPTIONS
Counts bytes in the input. Counts lines in the input. Counts characters in the input. Counts words in the input. OPERANDS
Specifies the pathname of the input file. If this operand is omitted, standard input is used. DESCRIPTION
A word is defined as a string of characters delimited by white space as defined in the X/Open Base Definitions for XCU4. The wc command counts lines, words, and bytes by default. Use the appropriate options to limit wc output. Specifying wc without options is the equivalent of specifying wc -lwc. If any options are specified, only the requested information is output. The order in which counts appear in the output line is lines, words, bytes. If an option is omitted, then the corresponding field in the output is omitted. If the -m option is used, then character counts replace byte counts. When you specify one or more files, wc displays the names of the files along with the counts. If standard input is used, then no file name is displayed. EXIT STATUS
The following exit values are returned: Successful completion. An error occurred. EXAMPLES
To display the number of lines, words, and bytes in the file text, enter: wc text This results in the following output: 27 185 722 text The numbers 27, 185, and 722 are the number of lines, words, and bytes, respectively, in the file text. To display only one or two of the three counts include the appropriate options. For example, the following command displays only line and byte counts: wc -cl text 27 722 text To count lines, words, and bytes in more than one file, use wc with more than one input file or with a file name pat- tern. For example, the following command can be issued in a directory containing the files text, text1, and text2: wc -l text* 27 text 112 text1 5 text2 144 total The numbers 27, 112, and 5 are the numbers of lines in the files text, text1, and text2, respectively, and 144 is the total number of lines in the three files. The file name is always appended to the output. To obtain a pure number for things like reporting purposes, pipe all input to the wc command using cat. For example, the following command will report the total count of characters in all files in a directory. echo There are `cat *.c | wc -c` characters in *.c files There are 1869 characters in *.c files ENVIRONMENT VARIABLES
The following environment variables affect the execution of wc: Provides a default value for the internationalization variables that are unset or null. If LANG is unset or null, the corresponding value from the default locale is used. If any of the internationalization vari- ables contain an invalid setting, the utility behaves as if none of the variables had been defined. If set to a non-empty string value, overrides the values of all the other internationalization variables. Determines the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed to multibyte characters in arguments and input files) and which characters are defined as white space characters. Determines the locale for the format and contents of diagnostic messages written to standard error and informative messages written to standard output. Determines the location of message catalogues for the processing of LC_MESSAGES. SEE ALSO
Commands: cksum(1), ls(1) Standards: standards(5) wc(1)

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