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How to interrupt running application?

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# 1  
Old 12-14-2012
How to interrupt running application?
Hello

i have problem passing ctrl+C into shell script

this script will run application and return value but never ends and stay running.

i tried trap and not working at all


the command should look like this :

Code:
sarm pcsp  -s CHG_M_P1

i want something to stop this command after output !

can you help
# 2  
Old 12-14-2012
You mean to say you want to kill it after the output within the script. or from the console.


You can try to find the
Code:
PID

of this process and use
Code:
kill

command after you get your output.
# 3  
Old 12-14-2012
Quote:
Originally Posted by Vikram_Tanwar12
You mean to say you want to kill it after the output within the script. or from the console.


You can try to find the
Code:
PID

of this process and use
Code:
kill

command after you get your output.
in shell scripting another command/line will not run until end of the first command
so when put this line
Code:
sarm pcsp  -s CHG_M_P1

it will never ends,
kill, trap , signulhup nothing will works because this command line not end
# 4  
Old 12-14-2012
do this exactly from your command line:

Code:
ps -ef | grep 'sarm pcsp'

This will give you something that looks like this
Code:
  mogabr 25675  9253   0   Dec 14 ?           0:00 sarm pcsp  -s CHG_M_P1
  mogabr   1234  7765  0   Dec 14 ?            0:00 grep sarm pcsp

See the red number? That is the pid of the process. The actual number you see will be different. So get that number:
Code:
kill  [number you found goes here]

That will stop the running application. If does not (because you have a trap stement in the code) then try:
Code:
kill -9 [number you found goes here]

kill -9 is NOT a great idea, it may leave things like files in an undefined state.
# 5  
Old 12-14-2012
You can also use
Code:
kill -9 pid

# 6  
Old 12-14-2012
Quote:
Originally Posted by Vikram_Tanwar12
You can also use
Code:
kill -9 pid


well

i think i cant explain in details

my question is
how to pass CTRL+C to run automatic in shell scripting as batch mode

---------- Post updated at 07:46 AM ---------- Previous update was at 07:38 AM ----------

Quote:
Originally Posted by jim mcnamara
do this exactly from your command line:

Code:
ps -ef | grep 'sarm pcsp'

This will give you something that looks like this
Code:
  mogabr 25675  9253   0   Dec 14 ?           0:00 sarm pcsp  -s CHG_M_P1
  mogabr   1234  7765  0   Dec 14 ?            0:00 grep sarm pcsp

See the red number? That is the pid of the process. The actual number you see will be different. So get that number:
Code:
kill  [number you found goes here]

That will stop the running application. If does not (because you have a trap stement in the code) then try:
Code:
kill -9 [number you found goes here]

kill -9 is NOT a great idea, it may leave things like files in an undefined state.
yes this works good if manual on unix

how to do that in shell scriptting as following

1-run command XXX which will not end
2-kill command XXX


u know that shell scripting is a procedural language means every line should be executed and ended so next line can run
in this case i can never go to kill command because the previous line XXX command never ends
# 7  
Old 12-14-2012
Yes I do understand scripting....

What you are asking does not make sense.

Assume you are a shell script, executing. How can you know if you are stuck?
You can only guess. Code for how long you are willing to wait then force an exit.
3600 = number of seconds in one hour
Code:
pid=$$
# kill the parent after 3600 seconds
sleep 3600 && kill $pid 2>/dev/null &
child_pid=$!
# [command that runs too long goes here]
sarm pcsp -s 
# if  sarm completed in less than 3600 seconds you get here
kill $child_pid   # stop the child from killing you.
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