sort − sort lines of text files
sort [OPTION]... [FILE]...
Write sorted concatenation of all FILE(s) to standard output.
arguments to long options are mandatory for short options
too. Ordering options:
ignore leading blanks
consider only blanks and alphanumeric characters
fold lower case to upper case characters
compare according to general numerical value
consider only printable characters
compare (unknown) < ‘JAN’ < ... < ‘DEC’
compare according to string numerical value
reverse the result of comparisons
check whether input is sorted; do not sort
start a key at POS1, end it at POS2 (origin 1)
merge already sorted files; do not sort
write result to FILE instead of standard output
stabilize sort by disabling last−resort comparison
use SIZE for main memory buffer
use SEP instead of non−blank to blank transition
use DIR for temporaries, not $TMPDIR or /tmp; multiple options specify multiple directories
with −c, check for strict ordering; without −c, output only the first of an equal run
end lines with 0 byte, not newline
display this help and exit
output version information and exit
POS is F[.C][OPTS], where F is the field number and C the character position in the field. OPTS is one or more single−letter ordering options, which override global ordering options for that key. If no key is given, use the entire line as the key.
SIZE may be followed by the following multiplicative suffixes: % 1% of memory, b 1, K 1024 (default), and so on for M, G, T, P, E, Z, Y.
With no FILE, or when FILE is −, read standard input.
*** WARNING *** The locale specified by the environment affects sort order. Set LC_ALL=C to get the traditional sort order that uses native byte values.
Written by Mike Haertel and Paul Eggert.
Report bugs to <bug−email@example.com>.
© 2005 Free Software Foundation, Inc.
This is free software. You may redistribute copies of it under the terms of the GNU General Public License <http://www.gnu.org/licenses/gpl.html>. There is NO WARRANTY, to the extent permitted by law.
The full documentation for sort is maintained as a Texinfo manual. If the info and sort programs are properly installed at your site, the command
should give you access to the complete manual.