Depends on what is controlling your WiFi, with netctl, most all the profiles have plain passwords in them, unless you configured otherwise. These profiles are

Depends on what is controlling your WiFi, with netctl, most all the profiles have plain passwords in them, unless you configured otherwise. These profiles are located in /etc/netctl, so cat-ing the correct file under sudo will give you it. This will be a concat-d list of all profiles in a pager: `sudo cat /etc/netctl/* | less`.