try loop sample [root@pm01 ~]# sh get_log.sh 0 => vm01 1 => vm02 2 => vm03 [root@pm01 ~]# [root@pm01 ~]# cat get_log.sh #!/bin/bash nodes=( vm01 vm02 vm03 ) cnt=0 for node in "${nodes[@]}" do echo "$cnt => $node" let cnt++ done [root@pm01 …