Turn off system beep

When working in an office, you do not want your computer to beep. It is very annoying if for every tab completion you (and your colleagues) hear the system bell. Here is how to turn it off:

• turn it off once:

modprobe -r pcspkr

• turn it off for every future reboot:

cd /lib/modules/$(uname -r)/kernel/drivers/input/misc/
mv pcspkr.ko pcspkr.ko.disabled