Shell Programming and Scripting

Hi Ghostdog,

Thank you very much for your reply, but i am not aware of python and even do not know how to use it.
Anything in shell script or Perl will be a great help.

Thanks
NT

Try this:

Code:

for line in logfile
do
var1=`grep "Entering ARRF_LIB_Evaluate" $line`
start_time=`echo $var1 | cut -d " " -f4 | sed -e 's/://g' -e 's/\.//g'`
#echo "$start_time"
var2=`grep "Exiting ARRF_LIB_Evaluate" $line`
end_time=`echo $var2 | cut -d " " -f4 | sed -e 's/://g' -e 's/\.//g'`
#echo "$end_time"
result=`expr $end_time - $start_time`
done
echo "$result ms"

Just save the script as myscript.py. then on the command prompt, type python myscript.py
that's all. of course, you must have Python installed.

as i mentioned, you can't just use expr to subtract 2 dates/time like that. what if the end time is 1 hour later, eg Sun Apr 26 03:11:03.224. how are you going to calculate that?

Hi,

This is not what i am looking for. just removing : and . from the variable will not result in desired output. That is wrong apporoach.
Kindly do not misguide me.

I hope what i want is clearly mentioned. Experts please give me some suggestions or help.

Thanks
NT

Hi Ghostdog,

Thank you for the information, But i should be aware what i am doing and i don't have any idea of python. I will be able to run the program with python installed but later if i need to do any changes then i won't be able. So i am looking for anything in shell or perl.

I appericiate your response very much and need some help in doing it in shell/perl.

Thanks
NT

A few questions.

Do you really need such a high time resolution? Would up to the second be fine as well?

Could you install/use external Perl modules (like Date::Manip for instance)?

What platform you are using?

What version of ksh?