Shulou(Shulou.com)06/01 Report--

In this issue, Xiaobian will bring you about how the sort command is used in Linux. The article is rich in content and analyzed and described from a professional perspective. After reading this article, I hope you can gain something.

Name: sort

Location: /usr/bin/sort

Permission: All Users

Usage: sort [OPTION]... [FILE]...

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

Options:

-b --ignore-leading-blanks Ignore leading spaces

-f --ignore-case fold lower case to upper case characters Ignore case of letters

-M --month-sort compare (unknown) < `JAN' < ... < `DEC'Sorted by month name

-n --numeric-sort compare according to string numerical value (default sort by text type)

The code is as follows:

$ cat a

11

32

5

1

4

3

$ sort a

1

11

3

32

4

5

$ sort -n a

1

3

4

5

11

32

-u --unique In the same data, only one row appears

$ cat a

1

3

5

1

3

$ sort -u a

1

3

5

-t --field-separator=SEP use SEP instead of non-blank to blank transition Specify separator, default TAB as separator

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

Specify the sorted interval

Sort first field delimited by colon ":"

head /etc/passwdroot:x:0:0:root:/root:/bin/bashdaemon:x:1:1:daemon:/usr/sbin:/bin/shbin:x:2:2:bin:/bin:/bin/shsys:x:3:3:sys:/dev:/bin/shsync:x:4:65534:sync:/bin:/bin/syncgames:x:5:60:games:/usr/games:/bin/shman:x:6:12:man:/var/cache/man:/bin/shlp:x:7:7:lp:/var/spool/lpd:/bin/shmail:x:8:8:mail:/var/mail:/bin/shnews:x:9:9:news:/var/spool/news:/bin/sh

$ head /etc/passwd| sort -t ":" -k 1bin:x:2:2:bin:/bin:/bin/shdaemon:x:1:1:daemon:/usr/sbin:/bin/shgames:x:5:60:games:/usr/games:/bin/shlp:x:7:7:lp:/var/spool/lpd:/bin/shmail:x:8:8:mail:/var/mail:/bin/shman:x:6:12:man:/var/cache/man:/bin/shnews:x:9:9:news:/var/spool/news:/bin/shroot:x:0:0:root:/root:/bin/bashsync:x:4:65534:sync:/bin:/bin/syncsys:x:3:3:sys:/dev:/bin/sh

The following example shows the importance of-n: $ cat apa:11:asa:32:capp:5:bstort:1:dpear:4:aahello:3:f

$ cat a |sort -t ":" -k 2 pa:11:astort:1:dsa:32:chello:3:fpear:4:aaapp:5:b

$ cat a |sort -t ":" -k 2 -n stort:1:dhello:3:fpear:4:aaapp:5:bpa:11:asa:32:c The above is how the sort command shared by Xiaobian is used in Linux. If you happen to have similar doubts, you may wish to refer to the above analysis for understanding. If you want to know more about it, please pay attention to the industry information channel.

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