[shell cmd] sort

정렬을 시킬 때 사용하는 명령어

사용 방법

순정렬

$ ps | sort > sortTest.txt

역정렬

$ ps | sort -r > sortTest.txt

---------------자세한 설명-----------------------------

SORT(1)                                                                            User Commands                                                                           SORT(1)

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.

       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

       -R, --random-sort

              sort by random hash of keys

       --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=POS1[,POS2]

              start a key at POS1 (origin 1), end it at POS2 (default end of line).  See POS syntax below

       -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

              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

       --help display this help and exit

       --version

              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.

AUTHOR

       Written by Mike Haertel and Paul Eggert.

REPORTING BUGS

       Report sort bugs to bug-coreutils@gnu.org

       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

       Copyright © 2011 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.

SEE ALSO

       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

              info coreutils 'sort invocation'

       should give you access to the complete manual.

GNU coreutils 8.12.197-032bb                                                      September 2011                                                                           SORT(1)