Add the following file as
Don’t forget to make the file executable.
What it does
This will trigger a random System Request every hour. Some of them are harmless, others less so.
Why it works
The Linux kernel can accept system requests using a keyboard combo (if
enabled), or by writing the corresponding key to
include useful functions such as syncing all buffers to disk, or killing all
processes on the current console to get a secure login. Also included are
things like forcefully halting or rebooting a system. These are normally used
for debugging purposes, or during recovery from a bad crash. In this case they
are used purely for the comedic effect of some of them.
The cron job above selects a random key from the available ones and writes it
Documentation on the various requests is available in
in the kernel documentation tree.