How can I display the list of available WiFi networks?
Solution 1
Use nmcli dev wifi
command. It shows the transfer rate, the signal strength and the security as well.
Solution 2
To scan all networks try using the command sudo iw dev wlan0 scan | grep SSID
.
You can find more info here: https://askubuntu.com/a/16588/362944
Solution 3
In Ubuntu 16.04 :
- Go to
/sys/class/net
you can see list of folders here. - find wireless interface. It has wireless folder. for example in my case is
wlp10
you can check it usingls wlp10
. if the folder's name different use that folder's name. sudo iwlist wlp1s0 scan | grep ESSID
now from here you can list all available WiFi.
source from here
Solution 4
Further to what has been already answered here, I've merged a few of them and added a little flavor of my own.
As for the nmcli
answer, sure, do that if you want to install more software. But if you're looking for Access Points, maybe you don't have an internet connection yet and are unable to connect to install said software. With all that said, here's my solution:
for i in $(ls /sys/class/net/ | egrep -v ^lo$); do sudo iw dev $i scan | grep SSID | awk '{print substr($0, index($0,$2)) }'; done 2>/dev/null | sort -u
Breaking it down:
for i in $(ls /sys/class/net/ | egrep -v ^lo$);
Lets have a look at all the contents of the location /sys/class/net. This will list all the network devices, but we're not really interested in the loopback interface. so we'll ignore that one
do sudo iw dev $i scan | grep SSID | awk '{print substr($0, index($0,$2)) }';done
For each of the network interfaces we found above, lets do the scan to list all the SSIDs (and only the SSIDs)
2>/dev/null
And ignore all the errors (like searching for SSIDs with ethernet interfaces).
| sort -u
And finally, If you have multiple wi-fi adapters on the system, only list each SSID once.
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Updated on September 18, 2022Comments
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Joshua Fox almost 2 years
My Ubuntu laptops's WiFi works fine on various Wifi networks. But the list of available networks accessed from the toolbar icon of nm-applet by no longer appears. I just see the known networks. The list of hidden networks also doesn't show any new networks.
sudo iwlist scan
likewise only shows known networks.How do I get list all available networks so I can connect to one?
I am using Xubuntu 14.04
-
steeldriver over 9 yearsDoes terminal command
nmcli dev wifi list
give anything additional to what's shown by the GUI applet? -
Todd Baur over 5 yearsAlso worth noting that
sudo iwlist scan
shows more available networks thaniwlist scan
(withoutsudo
) - so this question by itself is helpful. But perhaps it should be renamed to "How can I display the list of hidden WiFi networks"?
-
-
Serge Stroobandt about 6 yearsHere is the pertaining mnemonic: network manager command line interface device wifi
-
Jared Smith over 5 yearsNote this does not work with broadcom wireless cards.
-
Joshua Fox over 5 yearswlan0 should be replaced with real value from ifconfig of from /sys/class/net subfolder name, as stated in answer from @gujarat santana
-
Todd Baur over 5 yearsFor me this only found the WiFi network I was connected to rather than all available.
-
Todd Baur over 5 yearsIt requires
sudo
to display the entire list. -
Dan Esparza over 5 years@JaredSmith do the other solutions work with broadcom wifi cards?
-
Jared Smith over 5 years@DanEsparza they should
-
bitinerant over 5 yearsThe BSSID (MAC of remote access point) and other details are not shown by default, but you can show them with the
-f
option, e.g.nmcli -f SSID,BSSID,DEVICE dev wifi
. Use-f ALL
to see available fields. -
bitinerant over 5 years@icc97 - if you only see your current network, run
nmcli dev wifi rescan
, wait a bit, and then trynmcli dev wifi
again. -
PJ Brunet almost 5 yearsFor more details
nmcli d --help
-
bassmadrigal almost 4 yearsI know I'm late to the party, but if you want to just check for just wireless devices (and leave lo and ethernet devices alone), you can do the following:
for i in /sys/class/net/*; do [ -d "$i/wireless" ] && sudo iw dev $(basename $i) scan | grep SSID | awk '{print substr($0, index($0,$2)) }'; done | sort -u
-
EkriirkE over 2 yearsThis works better than nmcli for me because it breaks down and shows non-latin characters, where nmcli just shows a "?"
-
Admin about 2 years@EkriirkE well, for a more detailed breakdown on wifi networks in nmcli command you could use
-f ALL
option, e.g.nmcli -f ALL dev wifi
. Although I admit, it's still not as detailed asiw
's information.