shell脚本（查看多台服务器端口）

【xcall.sh】

#!/bin/bash

params=$@

hosts=`cat /soft/hadoop/etc/hadoop/slaves`

tput setaf 2

echo =============localhost==================

tput setaf 7

$params

for host in $hosts ; do

tput setaf 2

echo =============$host===========================

tput setaf 7

ssh -4 $host "source /etc/profile ; $params"

done