I've seen different ways to turn off the annoying Ubuntu beep but what is the best way to turn it off permanently through software?
disable the warning beep
you can do so by editing your
/etc/rc.local file. Open the file in your editor of choice and go all the way to the bottom of the file. At the bottom there should be a line which reads exit 0. Add a new line directly above this one and put this on that line:
modprobe -r pcspkr
Save the file and this will turn off the system beep. If you want to turn the system beep back on, just edit this file again and remove the line that was added.
You can disable this by editing a file and entering two simple lines.
And then add:
Save your file and the speaker beep will be gone when you reboot.
If you don’t want to wait until a reboot, simply type:
sudo rmmod pcspkr
You can disable system bell if in the Terminal you go to Edit->Current Profile->General and uncheck the Terminal Bell Or in the Configuration editor go to apps->Gnome-Terminal->Profiles->default check silent Bell.
.inputrc file in your home directory (create it if needed) and add the line
set bell-style visible
You can also add (or uncomment) this line in the general /etc/inputrc file to set the bell-style for all users (overriden in ~/.inputrc).
The best way is to disable the
pcspkr driver, that way you don't have to undo any hardware changes in the future.
Open up a terminal and enter the following:
sudo modprobe -r pcspkr
Then, if you want to avoid doing this every time after rebooting, append the following line to your
/etc/modprobe.d/blacklist file. If it's not there, create it.
Check out this answer over on serverfault
Disconnecting the speaker works too ;)