- # sed -n '3,6p' /etc/passwd #显示 3-6 行
- 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
- ---------------------------------------
- VIM 1.txt
- 11111111111111111111111111
- 2222222222222222222222222222
- 33333333333333333333333333
- 4444444444444444444444444444444
- 55555555555555555555555555555555
- 66666666666666666666666666666666666
- 7777777777777777777777777777777777777777
- 88888888888888888888888888888888888888888
- 99999999999999999999999999999999999999999999
- 0000000000000000000000000000000000000000
- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
- ddddddddddddddddddddddddddddddddddddd
- hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
- jjjjjjjjjjjjjjjjjjjjjjjjjjjjj
- kkkkkkkkkkkkkkkkkkkkkkkkkkkkk
- llllllllllllllllllllllllllllllllllllll
- mmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
- rrrrrrrrrrrrrrrrrrrrr
- eeeeeeeeeeeeeeeeeeeeeeeeeeee
- wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww
- ------------------------------------------------------
- # sed -n '1p;3p;8p' 1.txt #第 1 行, 第 3 行, 第 8 行. 用; 分隔
- 11111111111111111111111111
- 33333333333333333333333333
- 88888888888888888888888888888888888888888
- -------------------------------------------------------------------
- # sed -i '3,6d' 1.txt
- [[email protected] ~]# cat 1.txt
- 11111111111111111111111111
- 2222222222222222222222222222
- 7777777777777777777777777777777777777777
- 88888888888888888888888888888888888888888
- 99999999999999999999999999999999999999999999
- 0000000000000000000000000000000000000000
- aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
- ddddddddddddddddddddddddddddddddddddd
- hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
- jjjjjjjjjjjjjjjjjjjjjjjjjjjjj
- kkkkkkkkkkkkkkkkkkkkkkkkkkkkk
- llllllllllllllllllllllllllllllllllllll
- mmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
- rrrrrrrrrrrrrrrrrrrrr
- eeeeeeeeeeeeeeeeeeeeeeeeeeee
- wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww
- ------------------------------------------------------
sed [选项] '条件指令' 文件.. ..
sed 命令可以使用行号或正则做为条件匹配:
1) 行号案例
打印第 3 行:
[[email protected] ~]# sed -n '3p' /etc/passwd
来源: http://www.bubuko.com/infodetail-3040127.html