python下有个paramiko模块,这个模块可以实现ssh登录linux服务器,下面贴出代码,注意,我在centos5.6下,python2.6.5,paramiko-1.7的版本下测试成功。。。

#!/usr/bin/env python
import paramiko

hostname='172.28.102.249'
username='root'
password='toor'

if __name__=='__main__':
                                paramiko.util.log_to_file('paramiko.log')
                                s=paramiko.SSHClient()
                                s.load_system_host_keys()
                                s.connect(hostname=hostname,username=username,password=password)
                                stdin,stdout,stderr=s.exec_command('ifconfig;free;df')  #这里我输了了多个命令,可以试验下
                                print stdout.read()
                                s.close()

感兴趣的可以试验下