shell脚本（1）--一键启动zookeeper

一键启动三个节点（hadoop11，hadoop12，hadoop13）zookeeper

#! /bin/bashif [ $# -eq 0 ]
thenecho '没有提供参数 start | stop | status'exit
fifunction start(){for i in 11 12 13doecho --------------- hadoop$i -----------ssh root@hadoop$i "source /etc/profile;zkServer.sh start"done
}function stop(){for i in 11 12 13doecho --------------- hadoop$i -----------ssh root@hadoop$i "source /etc/profile;zkServer.sh stop"done
}function status(){for i in 11 12 13doecho --------------- hadoop$i -----------ssh root@hadoop$i "source /etc/profile;zkServer.sh status"done
}if [ "$1" = "start" ]; thenstart
elif [ "$1" = "stop" ]; thenstop
elif [ "$1" = "status" ]; thenstatus
elseecho "Usage: $0 [start|stop|status]"exit 1
fi