Linux

Commands

Find PID for a  port
sudo ss -tulnp | grep 9001

Kill some process using PID
sudo kill 6256 6263

Difference between two directories
diff -r directory1 directory2
-q: useful for quick checks

WiFi Connected but Internet is not working ?

nmcli connection delete secret-net
nmcli connection delete secret-net

Check IP routed and delete ?

sudo ip route show
sudo ip route del 192.168.0.1