On Thu, 25 Dec 2014 11:54:48 -0500 "Garry T. Williams" <gtwilli...@gmail.com> wrote:
> Aw, it's not that hard. You just want to pick out any line with one > of several words in it. Good old grep(1) will do it no problem. I > suppressed stderr from the iwlist(8) command so the error message > about interface lo doesn't show up. Also, the original grep(1) > command doesn't allow for alternation (|), so I use grep -E or egrep: > > $ iwlist scan 2>/dev/null|egrep 'Channel|Quality|ESSID|Cell' > Cell 01 - Address: 00:30:BD:93:E9:2C > Channel:4 > Frequency:2.427 GHz (Channel 4) > Quality=53/70 Signal level=-57 dBm > ESSID:"vfr" > Cell 02 - Address: EC:1A:59:07:3D:46 > Channel:11 > Frequency:2.462 GHz (Channel 11) > Quality=32/70 Signal level=-78 dBm > ESSID:"belkin.d46" > $ > > It looks like substituting "Frequency" for "Channel" will eliminate a > line of output without losing what you say you want on each AP. There's also nmcli for a more compact output, but not sure it has all the info you might need: % nmcli device wifi list SSID MODE CHAN RATE SIGNAL BARS SECURITY xfinitywifi Infra 11 54 Mbit/s 25 ▂___ -- HOME-C072 Infra 11 54 Mbit/s 30 ▂___ WPA1 WPA2 xfinitywifi Infra 1 54 Mbit/s 24 ▂___ -- kevin
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