python通过paramiko模块实现SSH链接操作

#coding=utf-8
import paramiko
hostname='172.16.12.100'
username='root'
password='test@123'##af@B6cUtt
if __name__=='__main__':
    #paramiko.util.log_to_file('paramiko.log')
    ssh=paramiko.SSHClient()

    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())#先设定接收或处理对方主机发来秘钥的方式
    #ssh.load_system_host_keys()
    ssh.connect(hostname=hostname,username=username,password=password)
    stdin,stdout,stderr=ssh.exec_command('ll /python/123.txt')
    #print stdout.readlines()
    #print stdout.read().decode()#解码输出
    print stdout.readline()
    #print stdout.read()
    #print stderr
    ssh.close()