In this video I take a look at Linux inter-process communication using signals. We'll take a look at the interplay between the kernel and processes (and sometimes the user).
Believe it or not, you can learn the basics pretty quickly and get some insights that are useful in the daily life of a Sysadmin.
Some commands we cover in the process (hurr hurr):
-kill (sending signals)
-killall
-pgrep
-pkill
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