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a simple alarm

Terminal - a simple alarm
while true; do while [ `date +%H%M` == "1857" ] ; do sleep 1s; yes | head -n 2000 > /dev/dsp; done; done;
2011-04-23 14:44:26
User: mrwill
Functions: head sleep yes
a simple alarm

this command will beep like an alarm for one minute from 18:57. you can change "1857" to your desired time.

you should have alsa-oss package installed, and you should also be root or part of "audio" group.


There are 17 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

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What others think

You're probably better off with:

at 18:57

at > beep


You need the beep-package of course, and you may need to comment out "pcspkr" from /etc/modules.conf/blacklist.conf .

Comment by joedhon 209 weeks and 1 day ago

And you finish giving commands to "at" by pressing ctrl+D.

Comment by joedhon 209 weeks and 1 day ago

that is of course one way of doing that, but you should be root (or change the permissions of the command) and you should unmute the beep channel in alsamixer (which I have it always muted).

a one liner for your command would be:

echo beep < at 18:57

and you may also customize the command with some options like:

beep -f 5000 -l 100 -r 4

which will change the frequency and length, and will repeat the beep 4 times.

Comment by mrwill 209 weeks and 1 day ago

sorry, I meant: echo beep | at 18:57

Comment by mrwill 209 weeks and 1 day ago

I didn't think of putting an echo in front of beep.

This definitly works better than beep|at 18:57 (the latter beeping when I give the command AND at the given time...),

I don't understand why, though.

Comment by joedhon 209 weeks ago

Your point of view

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