Tiny Core Linux

Tiny Core Base => Micro Core => Topic started by: mattrix on March 27, 2011, 11:59:55 PM

Title: What scripts are run by/after typing "poweroff"?
Post by: mattrix on March 27, 2011, 11:59:55 PM

The title says it,
I want to automate some things after poweroff or reboot is typed,
thanks

Title: Re: What scripts are run by/after typing "poweroff"?
Post by: Rich on March 28, 2011, 02:05:47 AM

Hi mattrix
Check out the /opt directory, there are 3  .sh  files for what you want to do.

Title: Re: What scripts are run by/after typing "poweroff"?
Post by: mattrix on March 28, 2011, 02:42:12 AM

Hey Rich
I looked at shutdown.sh but it doesn't seem to be called.
The others are for startup.

A stoplocal.sh would be nice.

Title: Re: What scripts are run by/after typing "poweroff"?
Post by: bmarkus on March 28, 2011, 02:56:47 AM

Quote from: mattrix on March 28, 2011, 02:42:12 AM

Hey Rich
I looked at shutdown.sh but it doesn't seem to be called.
The others are for startup.

A stoplocal.sh would be nice.

poweroff is a built-in unix command, it does not start scripts. shutdown.sh is used by TC's own exit utility.

Title: Re: What scripts are run by/after typing "poweroff"?
Post by: mattrix on March 28, 2011, 03:20:19 AM

so, can I call a script from rc.shutdown then?

Title: Re: What scripts are run by/after typing "poweroff"?
Post by: Rich on March 28, 2011, 03:32:49 AM

Hi mattrix
Until someone posts the correct way , try calling your script near the beginning of rc.shutdown.

Title: Re: What scripts are run by/after typing "poweroff"?
Post by: tinypoodle on March 28, 2011, 03:55:58 AM

Code: [Select]

cat `which exitcheck.sh`

Title: Re: What scripts are run by/after typing "poweroff"?
Post by: mattrix on March 28, 2011, 05:10:38 AM

Quote

Until someone posts the correct way

I gotta stop looking for the correct way, and think laterally.

Hows this sound?
Poweroff is in busybox,  I just have to link poweroff to my script and call busybox directly from the script.

matt
Now to learn bash scripting, google IS sometimes my friend.

Title: Re: What scripts are run by/after typing "poweroff"?
Post by: tinypoodle on March 28, 2011, 05:34:02 AM

IMHO sounds
1. like a dirty hack
2. like reinventing the wheel - when a proper mechanism is provided by the system already
However, that does not mean it could not potentially do the job for a particular system.

Note: bash is not included in base, sh scripting might be preferable where it can be sufficient.

Title: Re: What scripts are run by/after typing "poweroff"?
Post by: hiro on March 28, 2011, 07:38:24 AM

So simple. Create two scripts which do what you want, then run poweroff/reboot at the end of it.
You can name these scripts creatively, I would prefer them to be short for my own use.

Title: Re: What scripts are run by/after typing "poweroff"?
Post by: cosmin_ap on May 11, 2011, 06:39:10 PM

Quote from: tinypoodle on March 28, 2011, 05:34:02 AM

2. like reinventing the wheel - when a proper mechanism is provided by the system already

What is the mechanism provided by the system? The only option I see is replacing rc.shutdown with my own script which calls the original rc.shutdown after doing its thing. I'd rather like rc.shutdown have a line somewhere at the top like

[ -x /opt/shutdown.sh ] /opt/shutdown.sh

Title: Re: What scripts are run by/after typing "poweroff"?
Post by: danielibarnes on May 11, 2011, 07:17:27 PM

Quote from: cosmin_ap on May 11, 2011, 06:39:10 PM

What is the mechanism provided by the system?

The /etc/inittab (http://git.busybox.net/busybox/tree/examples/inittab) file is the mechanism provided by the system:

::restart:/etc/init.d/rc.shutdown
::restart:/sbin/init
::shutdown:/etc/init.d/rc.shutdown

Simply add your script:

::restart:/usr/local/sbin/myrestart
::restart:/etc/init.d/rc.shutdown
::restart:/sbin/init
::shutdown:/usr/local/sbin/myshutdown
::shutdown:/etc/init.d/rc.shutdown

Title: Re: What scripts are run by/after typing "poweroff"?
Post by: tinypoodle on May 11, 2011, 11:03:10 PM

Quote from: cosmin_ap on May 11, 2011, 06:39:10 PM

Quote from: tinypoodle on March 28, 2011, 05:34:02 AM

2. like reinventing the wheel - when a proper mechanism is provided by the system already

What is the mechanism provided by the system?

See Reply #3 & Reply #6