echo on | sudo tee /sys/bus/usb/devices/*/power/level > /dev/null
The command above is used to keep USB power on (Turns off USB power-saving). I execute the command every time I log in to Ubuntu because I have a USB audio device and it makes an annoying sound every time USB turns on/off.
The question is, how to keep the configurations which this command produce without the need to execute it every time?