import paramiko
 
# 创建SSH对象
ssh = paramiko.SSHClient()
# 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='host', port=22, username='root', password='123')
# 执行命令  stdout命令结果，stderr错误
stdin, stdout, stderr = ssh.exec_command('ls')
# 获取命令结果 
result = stdout.read()
# 关闭连接
ssh.close()

import paramiko
 
transport = paramiko.Transport(('hostname', 22))
transport.connect(username='root', password='123')
 
ssh = paramiko.SSHClient()
ssh._transport = transport
 
stdin, stdout, stderr = ssh.exec_command('df')
print(stdout.read())
 
transport.close()

import paramiko
 
private_key = paramiko.RSAKey.from_private_key_file('/home/auto/.ssh/id_rsa')
# 创建SSH对象
ssh = paramiko.SSHClient()
# 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='host', port=22, username='root', key=private_key)
# 执行命令
stdin, stdout, stderr = ssh.exec_command('df')
# 获取命令结果
result = stdout.read()
# 关闭连接
ssh.close()

import paramiko
 
private_key = paramiko.RSAKey.from_private_key_file('/home/auto/.ssh/id_rsa')
transport = paramiko.Transport(('hostname', 22))
transport.connect(username='wupeiqi', pkey=private_key)
ssh = paramiko.SSHClient()
ssh._transport = transport
stdin, stdout, stderr = ssh.exec_command('df')
transport.close()

import paramiko
 
transport = paramiko.Transport(('hostname',22))
transport.connect(username='root',password='123')
 
sftp = paramiko.SFTPClient.from_transport(transport)
# 将location.py 上传至服务器 /tmp/test.py
sftp.put('/tmp/location.py', '/tmp/test.py')
# 将remove_path 下载到本地 local_path
sftp.get('remove_path', 'local_path')
 
transport.close()

import paramiko
 
private_key = paramiko.RSAKey.from_private_key_file('/home/auto/.ssh/id_rsa')
 
transport = paramiko.Transport(('hostname', 22))
transport.connect(username='root', pkey=private_key )
 
sftp = paramiko.SFTPClient.from_transport(transport)
# 将location.py 上传至服务器 /tmp/test.py
sftp.put('/tmp/location.py', '/tmp/test.py')
# 将remove_path 下载到本地 local_path
sftp.get('remove_path', 'local_path')
 
transport.close()

import paramiko
 
class SSHConnection(object):
 
  def __init__(self, host='192.168.12.68', port=22, username='locojoy',pwd='123321QQ!'):
    self.host = host
    self.port = port
    self.username = username
    self.pwd = pwd
    self.__k = None
 
  def run(self):
    self.connect() # 连接远程服务器
    self.upload('db.py','/tmp/1.py') # 将本地的db.py文件上传到远端服务器的/tmp/目录下并改名为1.py
    self.cmd('df') # 执行df 命令
    self.close()  # 关闭连接
 
  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):
    sftp = paramiko.SFTPClient.from_transport(self.__transport)
    sftp.put(local_path,target_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(result)
    return result
 
obj = SSHConnection()
obj.run()