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#compdef sort
local ordering='(-d --dictionary-order -g --general-numeric-sort -M --month-sort -h --human-numeric-sort -n --numeric-sort --sort -V --version-sort --help --version)'
_arguments -s -S \
'(-b --ignore-leading-blanks)'{-b,--ignore-leading-blanks}'[ignore leading blanks]' \
"$ordering"{-d,--dictionary-order}'[consider only blanks and alphanumeric characters]' \
'(-f --ignore-case)'{-f,--ignore-case}'[fold lower case to upper case characters]' \
"$ordering"{-g,--general-numeric-sort}'[compare according to general numeric value]' \
'(-i --ignore-nonprinting)'{-i,--ignore-nonprinting}'[consider only printable characters]' \
"$ordering"{-M,--month-sort}"[compare (unknown) < 'JAN' < ... < 'DEC']" \
"$ordering"{-h,--human-numeric-sort}'[compare human readable numbers (e.g., 2K 1G)]' \
"$ordering"{-n,--numeric-sort}'[compare according to string numerical value]' \
"$ordering"{-R,--random-sort}'[sort by random hash of keys]' \
'--random-source=[get random bytes from file]:file:_files' \
'(-r --reverse)'{-r,--reverse}'[reverse the result of comparisons]' \
"$ordering--sort=[sort according to ordering]:ordering:(general-numeric human-numeric month numeric random version)" \
"$ordering"{-V,--version-sort}'[sort version numbers]' \
'--batch-size=[maximum inputs to merge]:number' \
'(-c --check -C)'{-c,-C}'[check whether input is sorted; do not sort]' \
'(-c --check -C)--check=-[check whether input is sorted; do not sort]::bad line handling:(diagnose-first silent quiet)' \
'--compress-program=[specify program to compress temporary files with]:program:(gzip bzip2 lzop xz)' \
'--debug[annotate the of the line used to sort]' \
'--files0-from=[read input files from file]:file:_files' \
'(-k --key)'{-k+,--key=}'[start a key at POS1, end it as POS2 (origin 1)]:key' \
'(-m --merge)'{-m,--merge}'[merge already sorted files; do not sort]' \
'(-o --output)'{-o+,--output=}'[write result to file instead of standard output]:output file:_files' \
'(-s --stable)'{-s,--stable}'[preserve original order of lines with the same key]' \
'(-S --buffer-size)'{-S+,--buffer-size=}'[specify size for main memory buffer]:size' \
'(-t --field-separator)'{-t+,--field-separator=}'[specify field separator instead of non-blank to blank transition]:separator' \
\*{-T+,--temporary-directory=}'[specify directory for temporary files]:directory:_directories' \
'(-u --unique)'{-u,--unique}'[with -c, check for strict ordering; without -c, output only the first of an equal run]' \
'--parallel=[set number of sorts run concurrently]:number' \
'(-z --zero-terminated)'{-z,--zero-terminated}'[end lines with 0 byte, not newline]' \
'(- *)--help[display help and exit]' \
'(- *)--version[output version information and exit]' \
'*:file:_files'
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