python调用SSH命令

# --*-- coding:utf-8 --*--

import paramiko

ip = '192.168.1.200'
port = 22
username = 'pi'
password = 'raspberry'
session_timeout = 60
client = paramiko.SSHClient()
#client.get_host_keys().add('ssh.example.com', 'ssh-rsa', key)
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
client.connect(ip, username=username, password=password)
stdin, stdout, stderr = client.exec_command('ls')
for line in stdout:
    print '... ' + line.strip('\n')
client.close()

# --*-- coding:utf-8 --*--

import paramiko
import time

def cmpt(s1,s2):
	fmt = '%Y-%m-%d'
	t1 = time.strptime(s1,fmt)
	t2 = time.strptime(s2,fmt)
	return time.mktime(t1) - time.mktime(t2)

ip = '192.168.1.200'
port = 22
username = 'pi'
password = 'raspberry'
session_timeout = 60
client = paramiko.SSHClient()
#client.get_host_keys().add('ssh.example.com', 'ssh-rsa', key)
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
client.connect(ip, username=username, password=password)
stdin, stdout, stderr = client.exec_command("ls -l --time-style='+%Y-%m-%d'")
sarr = []
for line in stdout:
	larr = line.strip('\n').split()
	if len(larr) > 5:
		if not sarr:
			sarr.append(larr[5])
			sarr.append(larr[6])
		if cmpt(larr[5],sarr[0]) > 0:
			sarr[0] = larr[5]
			sarr[1] = larr[6]
client.close()

for i in sarr:
	print i