python模拟shell执行脚本

工作时候需要模拟shell来执行任务，借助包paramkio

import paramiko
class ShellExec(object):

    host = '127.0.0.1'
    port = 3600
    user = 'username'
    pkey = '/home/username/.ssh/id_rsa' #

    def __init__(self):
        self._connect()
    def _connect(self):
        self.ssh = paramiko.SSHClient()
        self.ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        self.ssh.load_system_host_keys()
        self.ssh.connect(self.host, self.port, self.user, self.pkey)

    def execute(self, cmd):
        stdin, stdout, stderr = self.ssh.exec_command(cmd)
        return stdout.read(), stderr.read()