Shell Programming and Scripting

#!/bin/bash

server_list=(10.0.0.25)
regex="user1\|user2\|user3"

for((i=0; i< ${#server_list[@]}; i++))
do
    ssh root@${server_list[$i]} "sed  -i.bak \"/$regex/d\" /etc/sudoers"
done

#!/bin/bash
server_list=(server1)
regex="sagbhat\|ralavudi\|bratinm"
for((i=0; i< ${#server_list[@]}; i++))
do
    ssh root@${server_list[$i]} "sed  -i.bak \"/$regex/d\" /etc/sudoers"
done

[root@server1 etc]# cat /etc/sudoers|grep kgough
[root@server1 etc]# cat /etc/sudoers|grep llewis
[root@server1 etc]# cat /etc/sudoers|grep bpadhi

regex="^user1\|^user2\|^user3"