sort 命令

常用示例

说明

sort sorts lines of text files according to specified criteria. By default, it performs lexicographic (dictionary) sorting using the current locale. Multiple input files are merged and sorted together. Output goes to stdout by default; use -o to write to a file (can be same as input file safely). The -k option is powerful for structured data. Combined with -t to set the delimiter, it can sort CSV, TSV, and other columnar data by specific fields. For large files, sort automatically uses temporary files and can utilize multiple CPU cores with --parallel.

参数

-r, --reverse

Reverse the sort order

-n, --numeric-sort

Compare according to string numerical value

-h, --human-numeric-sort

Compare human-readable numbers (2K, 1G)

-f, --ignore-case

Fold lowercase to uppercase (case-insensitive)

-u, --unique

Output only unique lines

-k _KEYDEF_

Sort by specified key/column

-t _SEP_

Use SEP as field separator

-o _FILE_

Write result to FILE instead of stdout

-c, --check

Check if input is sorted; exit with status

-s, --stable

Stabilize sort by disabling last-resort comparison

-m, --merge

Merge already sorted files

-b, --ignore-leading-blanks

Ignore leading blanks in keys

-d, --dictionary-order

Consider only blanks and alphanumeric 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'

-R, --random-sort

Shuffle, but group identical keys

-V, --version-sort

Natural sort of version numbers

-z, --zero-terminated

Line delimiter is NUL, not newline

-S, --buffer-size=_SIZE_

Use SIZE for main memory buffer

-T, --temporary-directory=_DIR_

Use DIR for temporaries instead of $TMPDIR or /tmp

--parallel=_N_

Use N parallel threads

--debug

Annotate the sort key used and warn about questionable usage