bash-3.1# iwconfig wlan0
wlan0 IEEE 802.11bg ESSID:"FFFFFF"
Mode:Managed
Frequency:2.437 GHz Access Point: FF:FF:FF:FF:FF:FF
Bit Rate=1 Mb/s Tx-Power=27 dBm
Retry min limit:7 RTS thr
ff Fragment thr=2352 B
Encryption key
ff
Power Management
ff
Link Quality=88/100 Signal level:23/100
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
Usage: iwlist [interface] frequency
bash-3.1# iwlist wlan0 freq
wlan0 11 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
Current Frequency=2.437 GHz (Channel 6)
Quote:
freq/channel
Give the list of available frequencies in the device and the number of defined channels. Please note that usually the driver returns the total number of channels and only the frequencies available in the present locale, so there is no one to one mapping between frequencies displayed and channel numbers.
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