lwp@tosh:~$  sudo wpa_supplicant -d -i wlp3s0 -c testconfig
[sudo] password for lwp:
wpa_supplicant v1.0
random: Trying to read entropy from /dev/random
Initializing interface 'wlp3s0' conf 'testconfig' driver 'default' ctrl_interface 'N/A' bridge 'N/A'
Configuration file 'testconfig' -> '/home/lwp/testconfig'
Reading configuration file '/home/lwp/testconfig'
Failed to read or parse configuration '/home/lwp/testconfig'.
Failed to add interface wlp3s0
: Cancelling scan request
: Cancelling authentication timeout
lwp@tosh:~$