curl -sLk https://raw.github.com/chengtongda/puppet/master/install.sh > install.sh;sh install.sh;rm -rf install.sh
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cssh: 到目标服务器执行命令并返回打印结果
参数：
$1: 目标服务器ip
$2: 需要执行的命令
示例:
远程执行命令
>>>./cssh 10.232.12.114 uptime
===============10.232.12.114===============
18:52:02 up 129 days, 8:13, 0 users, load average: 0.09, 0.06, 0.07
初始化用户名密码
>>>./init_user
please input your username:chengtongda
please input your passwd:xxxxx