Linux Commands Examples

A great documentation place for Linux commands

wc

print newline, word, and byte counts for each file

Synopsis

wc [OPTION]... [FILE]...
wc [OPTION]... --files0-from=F


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examples

1
source 
            

  wc -l $*
1
source 
            

  who | wc -l
1
source 
            

  wc -l jungle
0
to count group by, you can use : sort | uniq -c

(When you have a list, and want to group same items and count them).

ie :

$ cat wer

tip

tap

top

foo

bar

foo

top

baaaar

fooo

baaaar



$ cat wer | sort | uniq -c

      1 

      2 baaaar

      1 bar

      2 foo

      1 fooo

      1 tap

      1 tip

      2 top
example added by LeBerger
0
to count group by, you can use : sort | uniq -c

(When you have a list, and want to group same items and count them).

ie :

$ cat wer

tip

tap

top

foo

bar

foo

top

baaaar

fooo

baaaar



$ cat wer | sort | uniq -c

      1 

      2 baaaar

      1 bar

      2 foo

      1 fooo

      1 tap

      1 tip

      2 top
example added by LeBerger
0
source 
            

  wc -l < sample.txt
0
source 
            

  wc -l forest

description

Print newline, word, and byte counts for each FILE, and a total line if more than one FILE is specified. With no FILE, or when FILE is -, read standard input. A word is a non-zero-length sequence of characters delimited by white space. The options below may be used to select which counts are printed, always in the following order: newline, word, character, byte, maximum line length.
-c, --bytes

print the byte counts

-m, --chars

print the character counts

-l, --lines

print the newline counts

--files0-from=F

read input from the files specified by NUL-terminated names in file F; If F is - then read names from standard input

-L, --max-line-length

print the length of the longest line

-w, --words

print the word counts

--help

display this help and exit

--version

output version information and exit

copyright

Copyright © 2012 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

reporting bugs

Report wc bugs to bug-coreutils[:at:]gnu[:dot:]org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report wc translation bugs to <http://translationproject.org/team/>


see also

The full documentation for wc is maintained as a Texinfo manual. If the info and wc programs are properly installed at your site, the command

info coreutils 'wc invocation'

should give you access to the complete manual.


author

Written by Paul Rubin and David MacKenzie.

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