On Mon, Jun 24, 2002 at 12:17:34AM +1000, Simon Wong wrote:
> On Mon, 2002-06-24 at 00:00, Intelligent Dynamic wrote:
> > 
> > A man kill will help, as it explains the different kill levels that you pass
> > as an argument. 9 kills a process without caring what state it is in.
> 
> Will have a close read of it.  Was a bit confused by the signals and
> assumed that the default would be "kill at all costs".

By default it sends "SIGTERM", which essentially asks a process to terminate
(but a process may choose to ignore it, or whatever).  A SIGTERM gives a
process a chance to cleanly exit.

The nasty option is "SIGKILL" (which is number 9, hence "kill -9"), which
simply terminates the process without asking first.  The process never gets
informed that it is about to die, the kernel simply kills it.

-Andrew.

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