Section: User Commands (1)
Updated: March 2014Index
Return to Main Contents
sort – sort lines of text files
Write sorted concatenation of all FILE(s) to standard output.
Mandatory arguments to long options are mandatory for short options too.
- -b, –ignore-leading-blanks
ignore leading blanks
- -d, –dictionary-order
consider only blanks and alphanumeric characters
- -f, –ignore-case
fold lower case to upper case characters
- -g, –general-numeric-sort
compare according to general numerical value
- -i, –ignore-nonprinting
consider only printable characters
- -M, –month-sort
compare (unknown) < `JAN’ < … < `DEC’
- -h, –human-numeric-sort
compare human readable numbers (e.g., 2K 1G)
- -n, –numeric-sort
compare according to string numerical value
- -R, –random-sort
sort by random hash of keys
get random bytes from FILE
- -r, –reverse
reverse the result of comparisons
sort according to WORD:
general-numeric -g, human-numeric -h, month -M,
numeric -n, random -R, version -V
- -V, –version-sort
natural sort of (version) numbers within text
merge at most NMERGE inputs at once;
for more use temp files
- -c, –check, –check=diagnose-first
check for sorted input; do not sort
- -C, –check=quiet, –check=silent
like -c, but do not report first bad line
compress temporaries with PROG;
decompress them with PROG -d
read input from the files specified by
NUL-terminated names in file F;
If F is – then read names from standard input
- -k, –key=POS1[,POS2]
start a key at POS1 (origin 1), end it at POS2
(default end of line)
- -m, –merge
merge already sorted files; do not sort
- -o, –output=FILE
write result to FILE instead of standard output
- -s, –stable
stabilize sort by disabling last-resort comparison
- -S, –buffer-size=SIZE
use SIZE for main memory buffer
- -t, –field-separator=SEP
use SEP instead of non-blank to blank transition
- -T, –temporary-directory=DIR
use DIR for temporaries, not $TMPDIR or /tmp;
multiple options specify multiple directories
- -u, –unique
with -c, check for strict ordering;
without -c, output only the first of an equal run
- -z, –zero-terminated
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; both are origin 1. If neither -t nor -b is in effect, characters
in a field are counted from the beginning of the preceding whitespace. 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 sort bugs to [email protected]
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report sort translation bugs to <http://translationproject.org/team/>
Copyright © 2010 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.
The full documentation for
is maintained as a Texinfo manual. If the
programs are properly installed at your site, the command
info coreutils ‘sort invocation’
should give you access to the complete manual.
- REPORTING BUGS
- SEE ALSO