I want to be able to write the current list of Wifi networks in airport, and their respective strengths, to a file. I would like to use some sort of bash script to do this, but I am unsure how to access the data in Airport.
Open Terminal.app and enter:
You have to be connected to a wireless signal. The output will look similar to the following:
agrCtlRSSI: -64 agrExtRSSI: 0 agrCtlNoise: -91 agrExtNoise: 0 state: running op mode: station lastTxRate: 130 maxRate: 144 lastAssocStatus: 0 802.11 auth: open link auth: wpa2-psk BSSID: 28:cf:da:b1:6:77 SSID: 🍀 MCS: 15 channel: 6
Most of the data is self explanatory.
agrCtlRSSI is the signal strength; the closer it is to
0, the stronger the signal.
agrCtlNoise is the noise on your Wi-Fi signal; you want this as low as possible. Finally,
maxRate is the maximum rate at which your Wi-Fi signal can run at, and
lastTxRate is the last transmitted rate.
You can also use this Terminal command to scan the airwaves for other Wi-Fi signals to connect to (I believe this is what you were looking for):
This returns something like:
SSID BSSID RSSI CHANNEL HT CC SECURITY (auth/unicast/group) 🍀 28:cf:da:b1:06:78 -73 100,+1 Y GB WPA2(PSK/AES/AES) dlink 00:19:5b:de:4e:36 -90 6 N -- WEP FON_BELGACOM 06:19:70:1e:c3:6e -77 1 N BE NONE bbox2-f279 00:19:70:1e:c3:6e -77 1 N BE WEP telenet-6F8E6 5c:35:3b:1e:88:20 -91 11 Y -- WPA(PSK/TKIP,AES/TKIP) WPA2(PSK/TKIP,AES/TKIP) 🍀 28:cf:da:b1:06:77 -65 6 Y GB WPA2(PSK/AES/AES)
If you’ll be using these commands a lot, you might want to add
/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources to your
$PATH, like this:
# Place this in your `~/.bash_profile` export PATH="/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources:$PATH"
That way, you can simply use the
airport command without typing the full path to the binary every time:
airport -I airport -s