topic Re: Scripting Question in Operating System - HP-UX

Scripting Question

SHABU KHAN — Fri, 01 Mar 2002 19:51:48 GMT

Hi All,

I am executing java command line arguments to check the status of processes in a korn shell script:
example:
java.com.abcdedf check API
The output on stdout is:
API1 RUNNING
API2 RUNNING
API3 RUNNING
API4 PAUSE
.....

I run this in cron every 10 mins and it pages the SAs when the status is other than RUNNING.. One of the APIs let's say API4 goes into a PAUSE status very often and I would like to modify the script to not to email the SA's the first time it goes into PAUSE status but the second time.

Right now everything goes in a file like this
java.... check API > $FILE
grep -v RUNNING $FILE > $FILE2

I later check if this file is more than some value then page with the output ...

Any help will be appreciated..

I am not sure If I was clear enough...

Thanks,
Shabu

Re: Scripting Question

James R. Ferguson — Fri, 01 Mar 2002 20:08:21 GMT

Hi:

One simple solution would be to leverage the count option ('-c') of 'grep' to test if there are more than one instance of your target:

if [ `grep -c "API14 PAUSE" /tmp/file` -gtr 1 ]
then
echo "more than one match"
else
echo "only one match"
fi

Regards!

...JRF...

Re: Scripting Question

Alan Riggs — Fri, 01 Mar 2002 20:12:54 GMT

if [ $(grep -c PAUSE $FILE2) -gt 0 ]
then
grep -v RUNNING $FILE | grep -v PAUSE > $FILE2
else
grep -v RUNNING $FILE > $FILE2
fi

Re: Scripting Question

Jeff Schussele — Fri, 01 Mar 2002 20:17:20 GMT

JRF - that would work if he was appending (>>) - but his grep line isn't.

He'd be better off setting a counter when he sees a pause & resetting it when pause disappears - don't you think?

Jeff

Re: Scripting Question

SHABU KHAN — Fri, 01 Mar 2002 21:54:28 GMT

Thanks Guys !

Hi JRF, as Jeff pointed out I am not appending the file ...but I get the idea now...

For now, temporarily I will write to two files and then validate..

If you guys could think about a permanent and efficient way to check this that will be great..

I would like to keep this simple (not too many variables/files)..

Thanks again !

-Shabu

Re: Scripting Question

Steven Sim Kok Leong — Fri, 01 Mar 2002 22:07:31 GMT

Hi,

#!/sbin/sh
if grep PAUSE /tmp/javaoutput >/dev/null 2>&1
then
if [ -e /tmp/PAUSED_ONCE ]
then
echo "this is the 2nd match, paging out now ..."
rm -f /tmp/PAUSED_ONCE
else
echo "this is only the 1st match"
touch /tmp/PAUSED_ONCE
fi
fi

Hope this helps. Regards.

Steven Sim Kok Leong

Re: Scripting Question

Alan Riggs — Fri, 01 Mar 2002 22:37:09 GMT

Shabu -- if you want a more elegant solution you will have to tell us your "reset condition". At some point, you undoubtedly want to page again on the first new instance of "PAUSE".

Re: Scripting Question

SHABU KHAN — Fri, 01 Mar 2002 23:40:09 GMT

Thanks Steven !

Nice logic :-) I tweaked it a little bit to not to satisfy the first condition if run from the command prompt and also exported variables instead of touch/rm files. Hope that's okay.

-Shabu