silence bell in sh

[weberjn]

How do you silence the bell in sh in FreeBSD 15?

I.e. I don't wan't to hear anything on the speaker on pressing backspace in an empty command line.

printf "\007" should still work, so no sysctl

set bell-style none does not work.

 

[MG]

sysctl kern.vt.enable_bell=0

 

[blackbird9]

If you're using xterm, you can specify -vb on the command line, which will make xterm use a 'visual bell' (a brief flash) rather than sounding the system bell. Just say
$ xterm -vb

 

[Kai Burghardt]

[…] I don't wan't to hear anything on the speaker on pressing backspace in an empty command line.

printf "\007" should still work, so no sysctl […]

Unfortunately this is not possible. sh(1) uses editline(3). It has one terminal_beep procedure. Neither terminal_beep nor every location calling terminal_beep consult some configuration switch. Error condition → unconditionally ring bell.​

sysctl kern.vt.enable_bell=0

This is already the default and for non‑root users it’s kbdcontrol(1)  ‑b off anyway.​

 

[MG]

Unfortunately this is not possible. sh(1) uses editline(3). It has one terminal_beep procedure. Neither terminal_beep nor every location calling terminal_beep consult some configuration switch. Error condition → unconditionally ring bell.
This is already the default and for non‑root users it’s kbdcontrol(1)  ‑b off anyway.​

Never noticed. It's an old syscons annoyance. Disabling the speaker entirely would be better but I've never seen a command for that. Maybe a problem because it's a stone-age device.