fabric note

 #!/usr/bin/env python
 # -*- coding:utf-8 -*-
 from fabric.api import *
 from fabric.context_managers import *

 env.user = 'root'
 env.password = 'www.metasequoia.cn'
 env.port = 10002

 def host(): #被执行的主机
     with open('./hosts') as f:
         hosts = f.readlines()
         env.hosts = hosts

 @parallel #并行执行任务
 def task():
     #local()本地执行命令
     with cd('/home'):
         run('ls') #远端执行命令
         #put()上传
         #get()下载

执行 fab host task