$ rfkill list all
0: phy0: Wireless LANSoft blocked: noHard blocked: yes

锁定无线设备

$ rfkill block 0$ rfkill list
0: phy0: Wireless LANSoft blocked: yesHard blocked: yes         

解锁无线设备

$ rfkill unblock all$ rfkill list all
0: phy0: Wireless LANSoft blocked: noHard blocked: yes

$ sudo iwlist wlan1 scanning |morewlan1     Scan completed :Cell 01 - Address: 04:A1:51:99:0A:25Channel:1Frequency:2.412 GHz (Channel 1)Quality=43/70  Signal level=-67 dBm  Encryption key:onESSID:"szgw-p5"Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s9 Mb/s; 12 Mb/s; 18 Mb/sBit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/sMode:MasterExtra:tsf=0000000904486387Extra: Last beacon: 1068ms agoIE: Unknown: 0007737A67772D7035IE: Unknown: 010882848B960C121824IE: Unknown: 030101IE: Unknown: 0706434E20010D14IE: IEEE 802.11i/WPA2 Version 1Group Cipher : TKIPPairwise Ciphers (2) : CCMP TKIPAuthentication Suites (1) : PSKIE: WPA Version 1Group Cipher : TKIPPairwise Ciphers (2) : CCMP TKIPAuthentication Suites (1) : PSKIE: Unknown: 2A0100IE: Unknown: 32043048606CIE: Unknown: DD180050F20201018D0003A4000027A4000042435E0062322F00IE: Unknown: DD1E00904C33CE111BFFFF000000000000000000000000000000000000000000IE: Unknown: 2D1ACE111BFFFF000000000000000000000000000000000000000000IE: Unknown: DD1A00904C34010D0A00000000000000000000000000000000000000IE: Unknown: 3D16010D0A00000000000000000000000000000000000000IE: Unknown: 4A0E14000A002C01C800140005001900IE: Unknown: 7F0101IE: Unknown: DD0900037F01010000FF7FIE: Unknown: DD0A00037F04010000004000

搜索SSID

$ sudo iwlist wlan1 scanning | grep ESSIDESSID:"product"ESSID:"wifi123456"ESSID:"ChinaNet-zNNs"ESSID:"ChinaNet-dqar"ESSID:"360WiFi-SEM"ESSID:"360\xE5\x85\x8D\xE8\xB4\xB9WiFi-A5"ESSID:"\xE5\x8F\x96\xE4\xB8\xAA\xE4\xBB\x80\xE4\xB9\x88\xE5\x90\x8D\xE5\xAD\x97\xE5\x91\xA2\xEF\xBC\x9F"ESSID:""ESSID:""            

$ sudo iwconfig eth1 essid <ESSID> key <PASSWORD>           

$ cat /proc/net/wireless
Inter-| sta-|   Quality        |   Discarded packets               | Missed | WEface | tus | link level noise |  nwid  crypt   frag  retry   misc | beacon | 22         

例 14.2. 命令行建立WiFi链接步骤

$ sudo rfkill unblock all
$ sudo ifconfig wlan1 up
$ sudo iwlist wlan1 scanning | grep ESSID
$ sudo iwconfig wlan1 essid Netkiller key 66535215