WiFi_Check

Purpose: Script checks to see if WiFi has a network IP and if not restart WiFi

Control the ACT led to indicate status

Uses a lock file which prevents the script from running more than one at a time. If lockfile is old, it removes it

For more info:
http://rpi.tnet.com/project/scripts/wifi_check

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Create and install a deb

cd wifi-monitor_1.0.0-1
dpkg-buildpackage -uc -b
sudo apt install ../wifi-monitor_1.0.0-1_all.deb

Alternative, less brainiac installation

rm -rf wifi-monitor_1.0.0-1/debian
dpkg-deb --build wifi-monitor_1.0.0-1
sudo apt install ./wifi-monitor_1.0.0-1.deb

Delete the package

sudo apt purge wifi-monitor

View logs from the script

journalctl -ft wifi-check
journalctl -ft wifi-led

View logs from the service(s)

journalctl -efu 'wifi-*'

Test the script

... if the service is not running. And make sure to be locked back in. Ideally run in a tmux.

sudo ip link set wlan0 down; sleep 10; sudo ./wifi-check; sleep 2; sudo ip link set wlan0 up