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Manual

SORT

NAME
SYNOPSIS
DESCRIPTION
AUTHOR
REPORTING BUGS
SEE ALSO

NAME

sort - sort lines of text files

SYNOPSIS

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

DESCRIPTION

Write sorted concatenation of all FILE(s) to standard output.

With no FILE, or when FILE is -, read standard input.

Mandatory arguments to long options are mandatory for short options too. Ordering options:
-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; see full documentation for supported strings

-R , --random-sort

shuffle, but group identical keys. See shuf (1)

--random-source = FILE

get random bytes from FILE

-r , --reverse

reverse the result of comparisons

--sort = WORD

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

Other options:
--batch-size = NMERGE

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-program = PROG

compress temporaries with PROG; decompress them with PROG -d

--debug

annotate the part of the line used to sort, and warn about questionable usage to stderr

--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

-k , --key = KEYDEF

sort via a key; KEYDEF gives location and type

-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

--parallel = N

change the number of sorts run concurrently to N

-u , --unique

output only the first of lines with equal keys; with -c , check for strict ordering

-z , --zero-terminated

line delimiter is NUL, not newline

--help

display this help and exit

--version

output version information and exit

KEYDEF is F[.C][OPTS][,F[.C][OPTS]] for start and stop position, where F is a field number and C a character position in the field; both are origin 1, and the stop position defaults to the line’s end. 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 [bdfgiMhnRrV], which override global ordering options for that key. If no key is given, use the entire line as the key. Use --debug to diagnose incorrect key usage.

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, R, Q.

*** 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.

AUTHOR

Written by Mike Haertel and Paul Eggert.

REPORTING BUGS

GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>