UNIX for Dummies Questions & Answers

Hi Deepak,

Thanks for your reply.

but i did not fully get you.

Do u mean to say that i should do like this?

while read line
do
str=`echo $line | awk '{split($0, date,"|"); print date[2]"|"date[3]"|"date[4]"|"date[5] }'`

export IFS=" "

for j in `cat uniqfile | egrep "${str}"`
do
echo $j
done

awk ' NF > 0 ' uniqfile

done<difffile


OR

while read line
do
str=`echo $line | awk '{split($0, date,"|"); print date[2]"|"date[3]"|"date[4]"|"date[5] }'`

export IFS=" "

for j in `awk ' NF > 0 ' uniqfile` ## but where are we grepping the string for?
do
echo $j
done

Thanks a million , Mike


done<difffile

This should take care of it:

Code:

awk "/${str}/ && NF > 0 " txt.txt

I had put the IFS/for blocks in to demonstrate how reassigning IFS would work, but my recommendation is to not reassign IFS unless absolutely necessary.

EDIT: Fixed!

Looking at this again, the awk script is producing inconsistent results. You may need to resort to using this for the time being:

Code:

export IFS="
"

for j in `cat uniqfile | egrep "${str}"`
do echo $j
done

Do read up on IFS, though as it can be dangerous to change IFS.

I'll look at this later to see if I can work out a better awk script (or perhaps some awk expert can interject)

Thanks a lot Deepak.

Vgersh helped me in doing my task with awk command.

to find and group records in file. Please have a look at this thread for more in detail.

Thanks again for your help.

Regards, Mike