sort 用做排序
语法: sort [-t 分隔符] [-kn1,n2] [-nru] 这里的n1 < n2
-t 分隔符 :作用跟cut的-d一个意思
-n :使用纯数字排序
-r :反向排序
-u :去重复
-kn1,n2 :由n1区间排序到n2区间,可以只写-kn1,即对n1字段排序
[root@gz1 ~]# 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 mysql:x:500:500::/home/mysql:/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
指定第三段
[root@gz1 ~]# 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 mysql:x:500:500::/home/mysql:/sbin/nologin 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
按数字排序
[root@gz1 ~]# sort -t: -k3 -n /etc/passwd root:x:0:0:root:/root:/bin/bash bin:x:1:1:bin:/bin:/sbin/nologin daemon:x:2:2:daemon:/sbin:/sbin/nologin adm:x:3:4:adm:/var/adm:/sbin/nologin lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin sync:x:5:0:sync:/sbin:/bin/sync shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown halt:x:7:0:halt:/sbin:/sbin/halt mail:x:8:12:mail:/var/spool/mail:/sbin/nologin uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin operator:x:11:0:operator:/root:/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 rpcuser:x:29:29:RPC Service User:/var/lib/nfs:/sbin/nologin rpc:x:32:32:Rpcbind Daemon:/var/cache/rpcbind:/sbin/nologin haldaemon:x:68:68:HAL daemon:/:/sbin/nologin vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/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 saslauth:x:499:76:Saslauthd user:/var/empty/saslauth:/sbin/nologin mysql:x:500:500::/home/mysql:/sbin/nologin nfsnobody:x:65534:65534:Anonymous NFS User:/var/lib/nfs:/sbin/nologin
指定3-5段
[root@gz1 ~]# sort -t: -k3,5 -n /etc/passwd root:x:0:0:root:/root:/bin/bash bin:x:1:1:bin:/bin:/sbin/nologin daemon:x:2:2:daemon:/sbin:/sbin/nologin adm:x:3:4:adm:/var/adm:/sbin/nologin lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin sync:x:5:0:sync:/sbin:/bin/sync shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown halt:x:7:0:halt:/sbin:/sbin/halt mail:x:8:12:mail:/var/spool/mail:/sbin/nologin uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin operator:x:11:0:operator:/root:/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 rpcuser:x:29:29:RPC Service User:/var/lib/nfs:/sbin/nologin rpc:x:32:32:Rpcbind Daemon:/var/cache/rpcbind:/sbin/nologin haldaemon:x:68:68:HAL daemon:/:/sbin/nologin vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/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 saslauth:x:499:76:Saslauthd user:/var/empty/saslauth:/sbin/nologin mysql:x:500:500::/home/mysql:/sbin/nologin nfsnobody:x:65534:65534:Anonymous NFS User:/var/lib/nfs:/sbin/nologin
反向排序
[root@gz1 ~]# sort -t: -k3,5 -n -r /etc/passwd nfsnobody:x:65534:65534:Anonymous NFS User:/var/lib/nfs:/sbin/nologin mysql:x:500:500::/home/mysql:/sbin/nologin saslauth:x:499:76:Saslauthd user:/var/empty/saslauth:/sbin/nologin nobody:x:99:99:Nobody:/:/sbin/nologin postfix:x:89:89::/var/spool/postfix:/sbin/nologin dbus:x:81:81:System message bus:/:/sbin/nologin sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin haldaemon:x:68:68:HAL daemon:/:/sbin/nologin rpc:x:32:32:Rpcbind Daemon:/var/cache/rpcbind:/sbin/nologin rpcuser:x:29:29:RPC Service User:/var/lib/nfs:/sbin/nologin ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin gopher:x:13:30:gopher:/var/gopher:/sbin/nologin games:x:12:100:games:/usr/games:/sbin/nologin operator:x:11:0:operator:/root:/sbin/nologin uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin mail:x:8:12:mail:/var/spool/mail:/sbin/nologin halt:x:7:0:halt:/sbin:/sbin/halt shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown sync:x:5:0:sync:/sbin:/bin/sync lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin adm:x:3:4:adm:/var/adm:/sbin/nologin daemon:x:2:2:daemon:/sbin:/sbin/nologin bin:x:1:1:bin:/bin:/sbin/nologin root:x:0:0:root:/root:/bin/bash
去重复
[root@gz1 ~]# vim 2.txt 1 1 2 2 3 4 5 5 6 3 4 ssa assd [root@gz1 ~]# sort -u 2.txt 1 2 3 4 5 6 assd ssa