You can execute a task at the time you want it to launch by using at. Let’s say you want mplayer start playing a movie at 12:42. Do a
at 1242
A command prompt will appear where you can type the command you cant to execute at 12:42
mplayer movie.avi
Next, press Enter then press Ctrl+D to exit the command line. The job will run in the background and will execute the command at the time requested.
You can always view a list of scheduled commands with at -l or remove a task with atrm 1 (where 1 is the job ID given by at -l).
It does not work with mplayer or firefox. I tried the mplayer and I hear the first millisecond of sound then it shuts down. Firefox wont even open.
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