#!/bin/bash # A simply shell script to update all remote Redhat Enterprise Linux 5 / CentOS Linux 5 servers # You must have ssh public and private key installed. This will save a lot of time if you # have 5-7 servers. The last example shows how to login as a normal user and run sudo # to update the same. # ------------------------------------------------------------------------- # Copyright (c) 2008 nixCraft project <http://cyberciti.biz/fb/> # This script is licensed under GNU GPL version 2.0 or above # ------------------------------------------------------------------------- # This script is part of nixCraft shell script collection (NSSC) # Visit http://bash.cyberciti.biz/ for more information. # ------------------------------------------------------------------------- # an array to store all ssh commands hosts=( "ssh root@server1.nixcraft.in -p222 yum update -y" "ssh root@server2.nixcraft.in -p333 yum update -y" "ssh root@server3.nixcraft.in yum update -y" "ssh user1@192.168.1.254 -t sudo '/usr/bin/yum update -y' " ) # simply run array item for c in "${hosts[@]}" do $c done
See how to install ssh-keys .
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Thanks. This is very helpful
thanks for the script ..
arrays are very useful :D