ssh批量登录并执行命令

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import pexpect

def ssh_cmd(ip, passwd, cmd):
    ret = -1
    ssh = pexpect.spawn('ssh root@%s "%s"' % (ip, cmd))
    try:
        i = ssh.expect(['password:', 'continue connecting (yes/no)?'], timeout=5)
        if i == 0 :
            ssh.sendline(passwd)
        elif i == 1:
            ssh.sendline('yes\n')
            ssh.expect('password: ')
            ssh.sendline(passwd)
        ssh.sendline(cmd)
        r = ssh.read()
        print r
        ret = 0
    except pexpect.EOF:
        print "EOF"
        ssh.close()
        ret = -1
    except pexpect.TIMEOUT:
        print "TIMEOUT"
        ssh.close()
        ret = -2
    return ret

#-*- coding: utf-8 -*-
#!/usr/bin/python 
import paramiko
import threading

def ssh2(ip,username,passwd,cmd):
    try:
        ssh = paramiko.SSHClient()
        ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        ssh.connect(ip,22,username,passwd,timeout=5)
        for m in cmd:
            stdin, stdout, stderr = ssh.exec_command(m)
#           stdin.write("Y")   #简单交互，输入 ‘Y’ 
            out = stdout.readlines()
            #屏幕输出
            for o in out:
                print o,
        print '%s\tOK\n'%(ip)
        ssh.close()
    except :
        print '%s\tError\n'%(ip)


if __name__=='__main__':
    cmd = ['cal','echo hello!']#你要执行的命令列表
    username = ""  #用户名
    passwd = ""    #密码
    threads = []   #多线程
    print "Begin......"
    for i in range(1,254):
        ip = '192.168.1.'+str(i)
        a=threading.Thread(target=ssh2,args=(ip,username,passwd,cmd))
        a.start()