[root@wang /]# sort  排序^C
[root@wang /]# sort /etc/passwd
adm:x:3:4:adm:/var/adm:/sbin/nologin
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
dbus:x:81:81:System message bus:/:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
gopher:x:13:30:gopher:/var/gopher:/sbin/nologin
haldaemon:x:68:68:HAL daemon:/:/sbin/nologin
halt:x:7:0:halt:/sbin:/sbin/halt
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
nfsnobody:x:65534:65534:Anonymous NFS User:/var/lib/nfs:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
operator:x:11:0:operator:/root:/sbin/nologin
postfix:x:89:89::/var/spool/postfix:/sbin/nologin
root:x:0:0:root:/root:/bin/bash
rpcuser:x:29:29:RPC Service User:/var/lib/nfs:/sbin/nologin
rpc:x:32:32:Rpcbind Daemon:/var/cache/rpcbind:/sbin/nologin
saslauth:x:499:76:"Saslauthd user":/var/empty/saslauth:/sbin/nologin
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync
uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin
vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin
wanghaipeng:x:501:502::/home/wanghaipeng:/bin/bash
whp:x:500:501::/home/whp:/bin/bash
[root@wang /]# sort -t: -k3 /etc/passwd
root:x:0:0:root:/root:/bin/bash
uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin
operator:x:11:0:operator:/root:/sbin/nologin
bin:x:1:1:bin:/bin:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
gopher:x:13:30:gopher:/var/gopher:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
rpcuser:x:29:29:RPC Service User:/var/lib/nfs:/sbin/nologin
rpc:x:32:32:Rpcbind Daemon:/var/cache/rpcbind:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
saslauth:x:499:76:"Saslauthd user":/var/empty/saslauth:/sbin/nologin
whp:x:500:501::/home/whp:/bin/bash
wanghaipeng:x:501:502::/home/wanghaipeng:/bin/bash
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
nfsnobody:x:65534:65534:Anonymous NFS User:/var/lib/nfs:/sbin/nologin
haldaemon:x:68:68:HAL daemon:/:/sbin/nologin
vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin
halt:x:7:0:halt:/sbin:/sbin/halt
sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
dbus:x:81:81:System message bus:/:/sbin/nologin
postfix:x:89:89::/var/spool/postfix:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
[root@wang /]# sort -t: -k3 /etc/passwd 段排序 冒号分割 第三段^C
[root@wang /]# sort -t: -k3,5 -n /etc/passwd 区间排序^C
[root@wang /]# sort -t: -k3 -n -r /etc/passwd 倒序^C
[root@wang /]# touch 2.txt
[root@wang /]# vim 2.txt
[root@wang /]# sort 2.txt
1
2
3
4
5
6
a
dsf
sdfsf
[root@wang /]# sort -n -r 2.txt
6
5
4
3
2
1
sdfsf
dsf
a
[root@wang /]# sort -u 2.txt ^C
[root@wang /]#  sort -u 2.txt ^C
sort: 获取文件状态失败(stat): ^C: 没有那个文件或目录
[root@wang /]#  sort -u 2.txt 排序 去重复^C
[root@wang /]# vim 2.txt
[root@wang /]# sort -un 2.txt
sdfsf
1
2
3
4
5
6
[root@wang /]# cat 2.txt
1
2
3
4
5
6
sdfsf
a
dsf
1
2
3
a
sd
[root@wang /]#