python paramiko连接ssh实现命令

pip install paramiko

#!/usr/bin/env python
#coding:utf-8
import paramiko
# 建立一个sshclient对象
ssh = paramiko.SSHClient()
# 允许将信任的主机自动加入到host_allow 列表，此方法必须放在connect方法的前面
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
# 调用connect方法连接服务器
ssh.connect('192.168.1.108', 22, 'alex', '123')
# 执行命令
stdin, stdout, stderr = ssh.exec_command('df')
# 结果放到stdout中，如果有错误将放到stderr中
print(stdout.read().decode('utf-8'))
# 关闭连接
ssh.close();

import paramiko
private_key_path = '/home/auto/.ssh/id_rsa'
key = paramiko.RSAKey.from_private_key_file(private_key_path)
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect('主机名 ', 端口, '用户名', key)
stdin, stdout, stderr = ssh.exec_command('df')
print(stdout.read().decode("utf-8"))
ssh.close()

import os,sys
import paramiko
t = paramiko.Transport(('182.92.219.86',22))
t.connect(username='derek',password='123')
sftp = paramiko.SFTPClient.from_transport(t)
sftp.put('/tmp/test.py','/tmp/test.py') 
t.close()
import os,sys
import paramiko
t = paramiko.Transport(('182.92.219.86',22))
t.connect(username='derek',password='123')
sftp = paramiko.SFTPClient.from_transport(t)
sftp.get('/tmp/test.py','/tmp/test2.py')
t.close()

import paramiko
pravie_key_path = '/home/auto/.ssh/id_rsa'
key = paramiko.RSAKey.from_private_key_file(pravie_key_path)
t = paramiko.Transport(('182.92.219.86',22))
t.connect(username='derek',pkey=key)
sftp = paramiko.SFTPClient.from_transport(t)
sftp.put('/tmp/test3.py','/tmp/test3.py') 
t.close()
import paramiko
pravie_key_path = '/home/auto/.ssh/id_rsa'
key = paramiko.RSAKey.from_private_key_file(pravie_key_path)
t = paramiko.Transport(('182.92.219.86',22))
t.connect(username='derek',pkey=key)
sftp = paramiko.SFTPClient.from_transport(t)
sftp.get('/tmp/test3.py','/tmp/test4.py') 
t.close()