paramiko多线程远程执行命令

 import paramiko
 import sys
 import getpass
 import threading
 import os

 def rcmd(host=None, port=22, user='root', passwd=None, command=None):
     ssh = paramiko.SSHClient()
     ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
     ssh.connect(hostname=host, username=user, password=passwd, port=port)
     _, stdout, stderr = ssh.exec_command(command)
     out = stdout.read()
     err = stderr.read()
     if out:
         print('[%s] OUT:\n%s' % (host, out.decode()))
     if err:
         print('[%s] ERROR:\n%s' % (host, err.decode()))
     ssh.close()

 if __name__ == '__main__':
     # rcmd('192.168.4.6', passwd='123456', command='id root; id wangwu')
     if len(sys.argv) != 3:
         print('Usage: %s ipfile "command"' % sys.argv[0])
         exit(1)
     if not os.path.isfile(sys.argv[1]):
         print('No such file:', sys.argv[1])
         exit(2)

     ipfile = sys.argv[1]
     command = sys.argv[2]
     password = getpass.getpass()
     with open(ipfile) as fobj:
         for line in fobj:
             ip = line.strip()  # 删除行尾的\n
             # rcmd(ip, passwd=password, command=command)
             t = threading.Thread(target=rcmd, args=(ip,), kwargs={'passwd': password, 'command': command})
             t.start()