Python模块paramiko可以实现用SSH登录服务器，并执行shell

#!/usr/bin/pythonimport sysimport paramikodef pycmd(server, port, username, password, shellcmd):    ssh = paramiko.SSHClient()    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()    ssh.connect(server, port, username, password)    stdin, stdout, stderr = ssh.exec_command(shellcmd)    print stdout.readlines()    ssh.close()if _name__ == "__main__":    pycmd("xxx.xxx.xxx.xxx", 22, "root", "password", sys.argv[1])