一： 使用paramiko

#设置ssh连接的远程主机地址和端口

t=paramiko.Transport((ip,port))

#设置登录名和密码

t.connect(username=username,password=password)

#连接成功后打开一个channel

chan=t.open_session()

#设置会话超时时间

chan.settimeout(session_timeout)

#打开远程的terminal

chan.get_pty()

#激活terminal

chan.invoke_shell()

然后就可以通过chan.send('command')和chan.recv(recv_buffer)来远程执行命令以及本地获取反馈。

 二： paramiko的两个模块介绍

paramiko有两个模块SSHClient()和SFTPClient()

SSHClient()的使用代码:

import paramiko

ssh = paramiko.SSHClient()  #  创建SSH对象

# 允许连接不在know_hosts文件中的主机

ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

# 连接服务器

ssh.connect(hostname='192.168.2.103', port=22, username='root', password='123456')

stdin, stdout, stderr = ssh.exec_command('ls')  # 执行命令

result = stdout.read()  # 获取命令结果

print (str(result,encoding='utf-8'))

ssh.close()  # 关闭连接

SSHClient()里有个transport变量,是用于获取连接，我们也可单独的获取到transport变量，然后执行连接操作

import paramiko

transport = paramiko.Transport(('192.168.2.103', 22))

transport.connect(username='root', password='123456')

ssh = paramiko.SSHClient()

ssh._transport = transport

stdin, stdout, stderr = ssh.exec_command('df')

print (str(stdout.read(),encoding='utf-8'))

transport.close()

　　

用transport实现上传下载以及命令的执行：

#coding:utf-8

import paramiko

import uuid

class SSHConnection(object):

def __init__(self, host='192.168.2.103', port=22, username='root',pwd='123456'):

self.host = host

self.port = port

self.username = username

self.pwd = pwd

self.__k = None

def connect(self):

transport = paramiko.Transport((self.host,self.port))

transport.connect(username=self.username,password=self.pwd)

self.__transport = transport

def close(self):

self.__transport.close()

def upload(self,local_path,target_path):

# 连接，上传

# file_name = self.create_file()

sftp = paramiko.SFTPClient.from_transport(self.__transport)

# 将location.py 上传至服务器 /tmp/test.py

sftp.put(local_path, target_path)

def download(self,remote_path,local_path):

sftp = paramiko.SFTPClient.from_transport(self.__transport)

sftp.get(remote_path,local_path)

def cmd(self, command):

ssh = paramiko.SSHClient()

ssh._transport = self.__transport

# 执行命令

stdin, stdout, stderr = ssh.exec_command(command)

# 获取命令结果

result = stdout.read()

print (str(result,encoding='utf-8'))

return result

ssh = SSHConnection()

ssh.connect()

ssh.cmd("ls")

ssh.upload('s1.py','/tmp/ks77.py')

ssh.download('/tmp/test.py','kkkk',)

ssh.cmd("df")

ssh.close()

1 #coding:utf-8 2 import paramiko 3 import uuid 4  5 class SSHConnection(object): 6  7     def __init__(self, host='192.168.2.103', port=22, username='root',pwd='123456'): 8         self.host = host 9         self.port = port10         self.username = username11         self.pwd = pwd12         self.__k = None13 14     def connect(self):15         transport = paramiko.Transport((self.host,self.port))16         transport.connect(username=self.username,password=self.pwd)17         self.__transport = transport18 19     def close(self):20         self.__transport.close()21 22     def upload(self,local_path,target_path):23         # 连接，上传24         # file_name = self.create_file()25         sftp = paramiko.SFTPClient.from_transport(self.__transport)26         # 将location.py 上传至服务器 /tmp/test.py27         sftp.put(local_path, target_path)28 29     def download(self,remote_path,local_path):30         sftp = paramiko.SFTPClient.from_transport(self.__transport)31         sftp.get(remote_path,local_path)32 33     def cmd(self, command):34         ssh = paramiko.SSHClient()35         ssh._transport = self.__transport36         # 执行命令37         stdin, stdout, stderr = ssh.exec_command(command)38         # 获取命令结果39         result = stdout.read()40         print (str(result,encoding='utf-8'))41         return result42 43 ssh = SSHConnection()44 ssh.connect()45 ssh.cmd("ls")46 ssh.upload('s1.py','/tmp/ks77.py')47 ssh.download('/tmp/test.py','kkkk',)48 ssh.cmd("df")49 ssh.close()