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

Scripting Question

frederick hannah — Wed, 27 Apr 2011 18:41:50 GMT

I use "wc -l" with a command to give me the number of lines of application processes. If that line is less than a certain amount, I know the applicatio has a problem. How can I feed this number into a script that will act upon the number of lines? I know the -gt or -lt conditions are used, but as yet I dont how to make this work.

Re: Scripting Question

Steven Schweda — Wed, 27 Apr 2011 18:52:32 GMT

Do you want a fish, or do you want to learn
how to catch a fish?

You might start by asking Google (or any
other Web search engine) to look for keywords
like, say:

shell script gt lt

That should find thousands of helpful
explanations and examples.

Re: Scripting Question

Steven Schweda — Wed, 27 Apr 2011 18:54:35 GMT

> You might start [...]

Or:
shell script tutorial
or:
shell script primer

Re: Scripting Question

frederick hannah — Wed, 27 Apr 2011 18:56:33 GMT

I prefer to crab or shrimp to be honest. I am using Google and I think I am getting close to an answer. Thanks

Re: Scripting Question

klb — Thu, 28 Apr 2011 19:56:44 GMT

BASE=/home/workarea
LOW_LIMIT=10 #lines
OUTFILE=/tmp/tmp_$$
PROG_LOG=$BASE/logs/plog.txt

tee -a $PROG_LOG \
| wc -l \
>$OUTFILE 2>&1

# exit if error above
status=$?
if [ $status -ne 0 ];then
echo "fail, done"
exit;
fi
CURRENT_LINES=`cat $OUTFILE`

if [ $CURRENT_LINES -lt $LOW_LIMIT ];then
#go do something about it
else
echo "success"
fi