pexpect-pxssh-登陆Linux-执行命令

#!/usr/bin/python
import pexpect
import pxssh
try:
remote=pxssh.pxssh()
hostname=raw_input('hostname:')
username=raw_input('username:')
password=raw_input('password:')
remote.login(hostname,username,password)
remote.sendline('cd /opt/autotest/')
remote.prompt()
remote.sendline('ll')
remote.prompt()
print remote.before
print('成功了吧')
remote.logout()
except pxssh.ExceptionPxssh,e:
print'pxssh failed on login'
print str(e)