pexpect通过ssh执行远程命令

pexpect是python一个模块，可以通过：easy_install pexpect

来安装。

这里主要是用pexpect执行ssh，查看远程uptime和df -h看硬盘状况。

#ssh_cmd.py

#coding:utf-8

import pexpect

def ssh_cmd(ip, user, passwd, cmd):


ssh = pexpect.spawn('ssh %s@%s "%s"' % (user, ip, cmd))

r = ''

try:

i = ssh.expect(['password: ', 'continue connecting (yes/no)?'])

if i == 0 :

ssh.sendline(passwd)

elif i == 1:

ssh.sendline('yes')

except pexpect.EOF:

ssh.close()

else:

r = ssh.read()

ssh.expect(pexpect.EOF)

ssh.close()

return r

hosts = '''

192.168.0.12:smallfish:1234:df -h,uptime

192.168.0.13:smallfish:1234:df -h,uptime

'''

for host in hosts.split("/n"):

if host:

ip, user, passwd, cmds = host.split(":")

for cmd in cmds.split(","):

print "-- %s run:%s --" % (ip, cmd)

print ssh_cmd(ip, user, passwd, cmd)



hosts数组格式是：主机IP:用户名:密码:命令 (多个命令用逗号, 隔开)

可以看出打印出相应的结果了，可以拼成html发送mail看起来比较美观些咯！