Hup Post: 3836

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Top Forums UNIX for Dummies Questions & Answers Hup Post 3836 by LivinFree on Thursday 12th of July 2001 02:19:55 AM

07-12-2001

Registered User

I'm curious. I was under the impression that it was simply a certain type of kill signal, in this case on a "hang up", or disconnection by the user running the process. I know certain processes restart on a HUP signal, but is that always the case, or is that simply how they handle that signal in a specific instance? For example , if I killall -HUP inetd, I know it will restart the inted daemon, re-reading all config files. But when I killall -HUP pppd, it literally hangs up...

Am I mistaken?

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killall

killall(1M)															       killall(1M)

NAME

       killall - kill all active processes

SYNOPSIS

       [signal]

DESCRIPTION

       is a procedure used by to kill all active processes not directly related to the shutdown procedure.

       is chiefly used to terminate all processes with open files so that the mounted file systems are no longer busy and can be unmounted.  sends
       the specified signal to all user processes in the system, with the following exceptions:

	      the process;

	      all processes (including background processes) associated with the terminal from which was invoked;

	      any process, if owned by

	      any process, if owned by

	      any process;

	      any process;

	      any process.

       obtains its process information from and therefore may not be able to perfectly identify which processes to signal (see ps(1)).

       If no signal is specified, a default of (kill) is used.

       is invoked automatically by The use of is recommended over using by itself (see shutdown(1M)).

FILES

SEE ALSO

       fuser(1M), kill(1), ps(1), shutdown(1M), signal(5).

STANDARDS CONFORMANCE

																       killall(1M)