[root@slave1 ~]# cat a3.txt
######
sun
dong
wang
jing
wei
sundong
sdong
sed ‘/dong/d‘ a3.txt
[root@slave1 ~]# sed -i ‘/dong/d‘ a3.txt
######
sun
wang
jing
wei
本文出自 “Steven一直不放弃” 博客，请务必保留此出处http://wsw26.blog.51cto.com/1442148/1755037
原文：http://wsw26.blog.51cto.com/1442148/1755037