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UGU: Unix Guru Universe - Unix Tip #4426- April 24, 2013 - Home : Help : Today's Tip
Unix Tip #4426- April 24, 2013

KILL REALLY DOES NOT KILL


kill is not really meant only
to kill a process. But main
intention is to send a signal
to process.And the process
handles these signals to do
various tasks.


kill -INT 1234
#where 1234 is the Process ID
is really, this set an
interrupt signal, Ctrl-C is an
example of interupt signal given
to shell.


kill -HUP 1234
#some UNIX daemons handle this,
to do refreshing business.


kill -KILL 1234
This is the sure kill,which
cannot be handled by any process.
Also know as, kill -9 1234.

Just, check the in the file
/usr/include/sys/signal.h for all
signals on the system.

More about this can be found on
kill and signal man pages.

This tip generously supported by: dkotian1@rediffmail.com

NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted by various unix admins around the globe. UGU suggest you read and test each tip in a non-volitile environment before placing into production.


LAST 5 TIPS
4425 - XVI A FILE
4424 - CAT A BINARY FILE, OOPS!
4423 - WHERE WAS IT STARTED?
4422 - TRIMMING THE LOG
4421 - FOLDING IN LINUX


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