iw或iwconfig如何连接有密码的wifi?：报错

我想通过iw或iwconfig命令配置电脑连上带密码的路由器，尝试如下：

~$:iwconfig wlan0 essid "tplink" key s:012345

Error for wireless request "Set Encode" (8B2A) :     SET failed on device wlan0 ; Operation not permitted.

~$:iw wlan0 connect tplink keys d:1:012345

key must be [d:]index:data where   'd:'     means default (transmit) key   'index:' is a single digit (0-3)   'data'   must be 5 or 13 ascii chars            or 10 or 26 hex digits for example: d:2:6162636465 is the same as d:2:abcde