python-ssh

#!/usr/bin/env python


import paramiko
import os
import sys


#host = sys.argv[1]
#print host
user='root'
password='123456'
port=22
cmd='df -h'
hosts=['192.168.1.234',
      '192.168.1.101',
      ]


s=paramiko.SSHClient()
s.load_system_host_keys()
s.set_missing_host_key_policy(paramiko.AutoAddPolicy())
for host in hosts:
    s.connect(host,port,user,password,timeout=5)
    stdin,stdout,stderr=s.exec_command(cmd)
    cmd_result=stdout.read(),stderr.read()
    for line in cmd_result:
        print line
s.close()