beep (make beeps via the PC speaker)

beep does exactly what you would expect: it beeps.

Unlike printf("\a"), beep allows you to control pitch, duration, and
repetitions. Its job is to live inside shell/perl scripts and allow
more granularity than one would otherwise have. It is controlled
completely through command line options. It's not supposed to be
complex, and it isn't - but it makes system monitoring (or whatever
else it gets hacked onto) that much more informative.

By default, the binary is installed setuid root, but only runnable
by root or users in the 'audio' group. You can disable this with
SETUID=no in the script's environment, but then beep will only work
for root.

To get beep to actually make sound, first add "modprobe pcspkr" to
/etc/rc.d/rc.modules.local (and also run "modprobe pcspkr" in the
shell, to avoid having to reboot), then run alsamixer and look for an
audio channel called "Beep" or "PC Speaker". Make sure it's turned up
and not muted, then run "alsactl store" as root. On some systems, for
some reason, even this won't work: beep runs successfully but doesn't
make any sound. Still investigating this; if you have problems, please
email the SlackBuild maintainer.