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Old 10-25-2011, 07:33 AM   #1
r4jiv007
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Question How to Schedule a program in linux ??


hi der !!

i wanted to run an application every-time i issue a shutdown command ...
i mean the app will execute first and then the system will shutdown.

i searched a bit and every time i found at command which i think is not applicable here

is there any way to edit the shutdown menu!!!!
Any suggestion for that !!!!!
 
Old 10-25-2011, 07:46 AM   #2
nenpa8lo
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If I'm not mistaken this is how you do it:
Code:
ln -s /etc/init.d/<script> /etc/rc.d/rc5.d/K50<script>
K50<script> should execute it at shutdown.
 
Old 10-25-2011, 09:30 AM   #3
deep27ak
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Quote:
Originally Posted by r4jiv007 View Post
hi der !!

i wanted to run an application every-time i issue a shutdown command ...
i mean the app will execute first and then the system will shutdown.

i searched a bit and every time i found at command which i think is not applicable here

is there any way to edit the shutdown menu!!!!
Any suggestion for that !!!!!
you need to add your script in the following file
Code:
#cp example.sh /etc/init.d/

#ln -s /etc/init.d/example.sh /etc/rc0.d/K10example.sh  ------->0 runlevel for poweroff
#ln -s /etc/init.d/example.sh /etc/rc6.d/K10example.sh  ------->6 runlevel for restart
 
Old 10-25-2011, 10:32 AM   #4
r4jiv007
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Quote:
Originally Posted by deep27ak View Post
you need to add your script in the following file
Code:
#cp example.sh /etc/init.d/

#ln -s /etc/init.d/example.sh /etc/rc0.d/K10example.sh  ------->0 runlevel for poweroff
#ln -s /etc/init.d/example.sh /etc/rc6.d/K10example.sh  ------->6 runlevel for restart

what if i want to execute a binary file not the shell script ??
and can u please explain me your lines atleast give me a breif
thanks
 
Old 10-25-2011, 05:14 PM   #5
nenpa8lo
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You have to make a symbolic link 'ln -s' (google) to your script as deep27ak pointed out. If you want to run executable then the fastest way for you would be having a script which executes your binary
Code:
#/bin/bash
/path/to/your/binary/actualbinary
should do. Remember to give your scirpt .sh and make it executable (chmod command - google).

Last edited by nenpa8lo; 10-25-2011 at 05:16 PM.
 
Old 10-27-2011, 02:31 AM   #6
deep27ak
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Quote:
Originally Posted by r4jiv007 View Post
what if i want to execute a binary file not the shell script ??
and can u please explain me your lines atleast give me a breif
thanks

there are files by the name of rc0, rc.1, rc.2 ....
and directories by the name of rc0.d, rc1.d rc2.d ........

which contains the services to be started
Code:
The naming is done on the basis of run level i.e. 
run level 0----> rc0.d
run level 5----> rc5.d
'K' and 'S' scripts are used to represent the type of execution
scripts starting with K are executed before S scripts
S stands for start and K stands for stop

Quote:
every file inside rcx.d is linked in /etc/init.d
So put your file in rcx.d and create a link to init.d
if you want to execute a binary file make it executable and do as I mentioned

best of luck
 
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Old 10-28-2011, 04:13 AM   #7
r4jiv007
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Talking

Quote:
Originally Posted by deep27ak View Post
there are files by the name of rc0, rc.1, rc.2 ....
and directories by the name of rc0.d, rc1.d rc2.d ........

which contains the services to be started
Code:
The naming is done on the basis of run level i.e. 
run level 0----> rc0.d
run level 5----> rc5.d
'K' and 'S' scripts are used to represent the type of execution
scripts starting with K are executed before S scripts
S stands for start and K stands for stop



if you want to execute a binary file make it executable and do as I mentioned

best of luck

thanks man that was a good brief description .......

can you provide me link or somthing to know this kinda stuffs ..... it will be very helpful to me
thanks again
 
Old 10-28-2011, 04:20 AM   #8
deep27ak
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Quote:
Originally Posted by r4jiv007 View Post
thanks man that was a good brief description .......

can you provide me link or somthing to know this kinda stuffs ..... it will be very helpful to me
thanks again
this is something which you can easily get on google

I am sure you will get a bunch of sites including Wikipedia to help you out

and if you think your problem is fixed mark the thread as solved
 
  


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