topic Re: rc script kill_proc. in Operating System - HP-UX

rc script kill_proc.

Carlos_172 — Tue, 02 May 2006 03:09:05 GMT

Hi Gurus.

When "kill_proc ()" part of rc script is used?

Thanks a lot.

Re: rc script kill_proc.

Steven E. Protter — Tue, 02 May 2006 03:15:52 GMT

Shalom,

Its used to shut down the processes/daemons created by the start section of the script.

SEP

Re: rc script kill_proc.

Carlos_172 — Tue, 02 May 2006 03:19:05 GMT

IsnÂ´t it done by stop section?

Re: rc script kill_proc.

Ninad_1 — Tue, 02 May 2006 03:20:32 GMT

Carlos,

Basically you have a single script to start and stop a particular process/application when you want to start/stop that process as part of system startup/shutdown. The scripts are kept in the /sbin/rcx.d where x is the run level.
In the script wou have a start section and a stop section - The parameter start or stop is passed to this script depending on whether you are starting up or shutting down - by the rc script. and depending on this parameter the corresponding section/function is executed.

Hope this clarifies,
Ninad

Re: rc script kill_proc.

Carlos_172 — Tue, 02 May 2006 03:23:52 GMT

Ok. I understand start and stop paramenters. I just donÂ´t understand when kill_proc is used ...

Thanks a lot.

Re: rc script kill_proc.

Senthil Kumar .A_1 — Tue, 02 May 2006 03:27:14 GMT

Hi Carlos,

You are right, in way that it is done in the stop section. If you had noticed in pre 11.00 versions there weren't any functions defined in the rc scripts. Now its become more modularized by using "functions". If i wouldn't have functions I had be clustering all the last activies in the stop section, namely kill the procs and cleaning up files etc. By modularizing, I can write a function namely "kill_procs" and "clean_files" etc,etc and that way I can summon the funtion whenever i require. There by it even gives a flexibility of repeating the sequence of commands using one liners if I were to embed a conditional statement in "stop" section, instead of repeating all the lines again and again.

Regards,
Senthil Kumar .A

Re: rc script kill_proc.

Senthil Kumar .A_1 — Tue, 02 May 2006 03:31:43 GMT

one more thing to add,

stop, start are sections to be executed in "case" statement.

whereas kill_proc is just a function. something like aliasing a set of statements in shell script. It does not have any baring to summun the rc script itself, may you are confused with the fact that ,when will i do the following...

/sbin/init.d/cron kill_proc

actually the only parameter that can be validly passed are..

stop,start,stop_mesg and start_mesg

regards,
Senthil Kumar .A

Re: rc script kill_proc.

Carlos_172 — Tue, 02 May 2006 04:58:31 GMT

ok. Then, If I donÂ´t call this function anywhere in stop and start section, it would be mandatory, isnÂ´t it?