linux wifi 命令行使用

首先使用查到无线网卡的名字

ifconfig -a

wlp0s20f3

iwlist 常用命令：
查询帮助信息

iwlist --help 

Usage: iwlist [interface] scanning [essid NNN] [last]

          [interface] frequency 
          [interface] channel 
          [interface] bitrate 
          [interface] rate 
          [interface] encryption 
          [interface] keys 
          [interface] power 
          [interface] txpower 
          [interface] retry 
          [interface] ap 
          [interface] accesspoints 
          [interface] peers 
          [interface] event 
          [interface] auth 
          [interface] wpakeys 
          [interface] genie 
          [interface] modulation 

查询版本信息

 iwlist --version 

iwlist Wireless-Tools version 30

      Compatible with Wireless Extension v11 to v22.

Kernel Currently compiled with Wireless Extension v22.

wlp0s20f3 Recommend Wireless Extension v21 or later,

      Currently compiled with Wireless Extension v22.

搜索wifi热点网络

iwlist wlp0s20f3 scan 

wlp0s20f3 Scan completed :

      Cell 01 - Address: CC:F9:57:D0:F5:85
                Channel:6
                Frequency:2.437 GHz (Channel 6)
                Quality=53/70  Signal level=-57 dBm  
                Encryption key:on
                ESSID:"xxxxxxxxxxxxxxxx"
                Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                          9 Mb/s; 12 Mb/s; 18 Mb/s
                Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                Mode:Master

查询频道信息

iwlist wlp0s20f3 frequen

wlp0s20f3 32 channels in total; available frequencies :

      Channel 01 : 2.412 GHz
      Channel 02 : 2.417 GHz
      Channel 03 : 2.422 GHz
      Channel 04 : 2.427 GHz
      Channel 05 : 2.432 GHz
      Channel 06 : 2.437 GHz
      Channel 07 : 2.442 GHz
      Channel 08 : 2.447 GHz
      Channel 09 : 2.452 GHz
      Channel 10 : 2.457 GHz
      Channel 11 : 2.462 GHz
      Channel 12 : 2.467 GHz
      Channel 13 : 2.472 GHz
      Channel 36 : 5.18 GHz
      Channel 40 : 5.2 GHz
      Channel 44 : 5.22 GHz
      Channel 48 : 5.24 GHz
      Channel 52 : 5.26 GHz
      Channel 56 : 5.28 GHz
      Channel 60 : 5.3 GHz
      Channel 64 : 5.32 GHz
      Channel 100 : 5.5 GHz
      Channel 104 : 5.52 GHz
      Channel 108 : 5.54 GHz
      Channel 112 : 5.56 GHz
      Channel 116 : 5.58 GHz
      Channel 120 : 5.6 GHz
      Channel 124 : 5.62 GHz
      Channel 128 : 5.64 GHz
      Channel 132 : 5.66 GHz
      Channel 136 : 5.68 GHz
      Channel 140 : 5.7 GHz
      Current Frequency:2.437 GHz (Channel 6)
 

查询连接速度

iwlist wlp0s20f3 rate 

wlp0s20f3 unknown bit-rate information.

      Current Bit Rate:39 Mb/s
    

查询热点信息

iwlist wlp0s20f3 ap 

wlp0s20f3 Interface doesn't have a list of Peers/Access-Points
查询重接次数

iwlist wlp0s20f3 retry     

wlp0s20f3 Fixed limit ; min limit:0

                        max limit:255
      Current mode:on
              short limit:7
               long limit:4

查询电源模式

iwlist wlp0s20f3 power

 

wlp0s20f3 Current mode:on
查询功耗

iwlist wlp0s20f3 txpower

wlp0s20f3 unknown transmit-power information.

      Current Tx-Power=22 dBm      (158 mW)

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