paramiko模块执行linux命令

import paramiko
import sys


def sshExecCMD(hostname, username, password, port, cmd):
    # 创建一个ssh对象
    ssh_client = paramiko.SSHClient()
    # 设置丢失主机key时的策略为自动添加
    ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    # 连接服务器
    try:
        ssh_client.connect(hostname=hostname, username=username, password=password, port=port)
    except Exception as e:
        print("服务器{}连接失败".format(hostname))
        print(e)
        sys.exit()
    # 执行linux命令
    stdin, stdout, stderr = ssh_client.exec_command(cmd)
    print("服务器{}，「 {} 」执行结果：".format(hostname, cmd))
    print(stdout.read().decode("utf-8"))
    # 关闭ssh连接
    ssh_client.close()


if __name__ == "__main__":
    servers = {
        "47.xx.xx.x3": {
            "username": "root",
            "password": "Cmzw@13579",
            "port": 22,
        }
    }
    cmd = "df -hT"
    for ip,info in servers.items():
        sshExecCMD(hostname=ip, username=info.get("username"), password=info.get("password"), port=info.get("port"), cmd=cmd)