#!/bin/bash#if [ $1 -eq null ]; then #   echo "please input params1!"#   exit#fi#if [ $2 -eq null ]; then #   echo "please input params2!"#   exit#fi# type , $1 { scp, ssh },  src $2, dst $3user=hadoopif [ "$3" != "" -a "$1" != "scp" ] ; then    user=$3fiif [ "$4" != "" ] ; then     iplist=$4else     iplist=`cat /home/hadoop/gitclone/opshell/hadoop/machine.conf` fifor ip in $iplist;do   echo "-----ops $ip -------------"   if [ "$1" == "scp" ] ; then           scp -r $2 $user@$ip:$3   elif [ "$1" == "ssh" ] ; then    ssh $user@$ip "mkdir ~/.ssh | touch ~/.ssh/authorized_keys"    cat ~/.ssh/id_rsa.pub | ssh $user@$ip "cat >> ~/.ssh/authorized_keys"    ssh $user@$ip "chmod 700 ~/.ssh"   elif [ "$1" == "cmd" ] ; then    ssh $user@$ip "$2"   fidone