刪除匹配的下一行到最后一行
[root@test200 ~]# cat test
a
b
c
d
e
f
[root@test200 ~]# sed '/c/{p;:a;N;$!ba;d}' test
a
b
c
定義一個標簽a，匹配c，然后N把下一行加到模式空間里，匹配最后一行時，才退出標簽循環，然后命令d，把這個模式空間里的內容全部清除。
if 匹配"c"
:a
追加下一行
if 不匹配"$"
goto a
最后退出循環，d命令刪除。
刪除匹配行和匹配行后的2行
[root@jiangyi01.sqa.zmf /home/ahao.mah/syslog-ng/muahao_tools]
#cat file
hello muahao
I am good
123 1
this is jack
this is jack
fffff
gg
like this
[root@jiangyi01.sqa.zmf /home/ahao.mah/syslog-ng/muahao_tools]
#sed '/muahao/,+1d' file
123 1
this is jack
this is jack
fffff
gg
like this
[root@jiangyi01.sqa.zmf /home/ahao.mah/syslog-ng/muahao_tools]
#sed '/muahao/,+2d' file
this is jack
this is jack
fffff
gg
like this