linux 常用脚本模板

集群命令启动脚本:

#!/bin/bash
if [ $#  -lt  1 ]
then
 echo "请放入参数!"
 exit;
fi


case $1 in
"start")
for  zk  in hadoop202 hadoop203 hadoop204
do
   echo  ==========$zk:zookeeper启动=======
   ssh  $zk  "/opt/module/zookeeper-3.4.10/bin/zkServer.sh start"
done

;