Python3下的paramiko模块

paramiko模块是基于Python实现的SSH远程安全连接，用于SSH远程执行命令、文件传输等功能。

默认Python没有，需要手动安装：pip install paramiko

SSH密码认证远程执行命令

import paramiko
import sys
hostname = '192.168.1.215'
port = 22
username = 'root'
password = '123456'
client = paramiko.SSHClient()  # 绑定实例
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
client.connect(hostname, port, username, password, timeout=5)
stdin, stdout, stderr = client.exec_command('df -h')   # 执行bash命令
result = stdout.read()
error = stderr.read()
# 判断stderr输出是否为空，为空则打印执行结果，不为空打印报错信息
if not error:
   print(result)
else:
   print(error)
client.close()

上传文件到远程服务器

import os, sys
import paramiko
hostname = '192.168.1.215'
port = 22
username = 'root'
password = '123456'
local_path = '/root/test.txt'
remote_path = '/opt/test.txt'
if not os.path.isfile(local_path):
    print local_path + " file not exist!"
    sys.exit(1)
try:
    s = paramiko.Transport((hostname, port))
    s.connect(username = username, password=password)
except Exception as e:
    print e
    sys.exit(1)
sftp = paramiko.SFTPClient.from_transport(s)
# 使用put()方法把本地文件上传到远程服务器
sftp.put(local_path, remote_path)
# 简单测试是否上传成功
try:
    # 如果远程主机有这个文件则返回一个对象，否则抛出异常
    sftp.file(remote_path)
    print ("上传成功.")
except IOError:
    print ("上传失败!")
finally:
    s.close()