ssh互信条件下的多机拷贝脚本和执行远程命令

前提：集群中机器都配了互信

1、多机拷贝文件到目标机器（其中hadoop01~20为目标机器hostname或ip）

　 使用示例: sh sshc.sh /etc/profile  将/etc/profile拷贝所有机器

sshc.sh脚本

# !/bin/bash

scp -r "$1" hadoop01:"$1"
scp -r "$1" hadoop02:"$1"
scp -r "$1" hadoop03:"$1"
scp -r "$1" hadoop04:"$1"
scp -r "$1" hadoop05:"$1"
scp -r "$1" hadoop06:"$1"
scp -r "$1" hadoop07:"$1"
scp -r "$1" hadoop08:"$1"
scp -r "$1" hadoop09:"$1"
scp -r "$1" hadoop10:"$1"
scp -r "$1" hadoop11:"$1"
scp -r "$1" hadoop12:"$1"
scp -r "$1" hadoop13:"$1"
scp -r "$1" hadoop14:"$1"
scp -r "$1" hadoop15:"$1"
scp -r "$1" hadoop16:"$1"
scp -r "$1" hadoop17:"$1"
scp -r "$1" hadoop18:"$1"
scp -r "$1" hadoop19:"$1"
scp -r "$1" hadoop20:"$1"

2、ssht.sh 多机同时执行命令（其中hadoop01~20为目标机器hostname或ip）

 使用示例: sh ssht.sh 'date'  打印出所有机器的当前时间

# !/bin/bash

ssh -t hadoop01:"$1"
ssh -t hadoop02:"$1"
ssh -t hadoop03:"$1"
ssh -t hadoop04:"$1"
ssh -t hadoop05:"$1"
ssh -t hadoop06:"$1"
ssh -t hadoop07:"$1"
ssh -t hadoop08:"$1"
ssh -t hadoop09:"$1"
ssh -t hadoop10:"$1"
ssh -t hadoop11:"$1"
ssh -t hadoop12:"$1"
ssh -t hadoop13:"$1"
ssh -t hadoop14:"$1"
ssh -t hadoop15:"$1"
ssh -t hadoop16:"$1"
ssh -t hadoop17:"$1"
ssh -t hadoop18:"$1"
ssh -t hadoop19:"$1"
ssh -t hadoop20:"$1"