sed 命令找到对应的行并将注释去掉
[root@localhost ~]# cat wa.txt list-max-ziplist-entries 512 list-max-ziplist-value 64 # bind 127.0.0.1 [root@localhost ~]# sed -i '/^# bind 12.*/s/^# //' wa.txt #找到准确的行并取消注释 list-max-ziplist-entries 512 list-max-ziplist-value 64 bind 127.0.0.1