how to grep within a script, and test result?

bobbyr · 01-13-2004, 11:45 AM

I want to grep for a record in a text file from within a ksh script. I want to pass a variable.

grep `$checkpolicy $DONELIST`

If the result is successfull skip the next piece of code, (which sends an email), and continue. The email will have already been sent on the previous pass.

How do i test for the result, what parameter will the grep return?

Thanks.

crabboy · 01-13-2004, 12:06 PM

grep returns a 0 on a find. You can check the return code with the $? variable.

Code:

#!/bin/ksh

checkpolicy=hello
DONELIST="file1 file2 file3"

grep $checkpolicy $DONELIST

if [ $? -eq 0 ]; then
   echo "Hey, found it"
else
   echo "No such luck"
fi

bobbyr · 01-13-2004, 12:53 PM

Thanks for the quick reply, it is greatly appreciated. I am still trying to get a handle on shell scripting, very new to it.

Is this a good forum for shell scripting type of questions?

Bob

Strike · 01-13-2004, 12:57 PM

Quote:

Originally posted by bobbyr
Is this a good forum for shell scripting type of questions?

It's definitely better than nothing

I know that myself and a few others are pretty familiar with shell scripting, so feel free to ask anytime.

bobbyr · 01-13-2004, 01:11 PM

thanks!

bob