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默认排序
sort filename
[root@localhost ~]$ cat test.txt
eee
bbb
ddd
aaa
ccc
[root@localhost ~]$ sort test.txt
aaa
bbb
ccc
ddd
eee去除重复行
sort -u filename
[root@localhost ~]$ cat test.txt
eee
bbb
ddd
ddd
aaa
ccc
[root@localhost ~]$ sort -u test.txt
aaa
bbb
ccc
ddd
eee按列排序
sort -k 2 filename 按第二列排序
[root@localhost ~]$ cat test2.txt
eee 23 555
ddd 11 666
aaa 22 888
ccc 23 111
bbb 24 222
[root@localhost ~]$ sort test2.txt
aaa 22 888
bbb 24 222
ccc 23 111
ddd 11 666
eee 23 555
[root@localhost ~]$ sort -k 2 test2.txt
ddd 11 666
aaa 22 888
ccc 23 111
eee 23 555
bbb 24 222
[root@localhost ~]$ sort -k 3 test2.txt
ccc 23 111
bbb 24 222
eee 23 555
ddd 11 666
aaa 22 888指定分隔符
sort -t : filename
[root@localhost ~]$ cat test2.txt
eee:23:555
ddd:11:666
aaa:22:888
ccc:23:111
bbb:24:222
[root@localhost ~]$ sort -t : -k 2 test2.txt
ddd:11:666
aaa:22:888
ccc:23:111
eee:23:555
bbb:24:222逆序排列
sort -r filename
[root@localhost ~]$ cat test.txt
eee
bbb
ddd
aaa
ccc
[root@localhost ~]$ sort -r test.txt
eee
ddd
ccc
bbb
aaa按数字排序
sort -n filename
[root@localhost ~]$ cat test3.txt
10
2
11
34
[root@localhost ~]$ sort test3.txt
10
11
2
34
[root@localhost ~]$ sort -n test3.txt
2
10
11
34