Hi Guys,

It is working fine when i supstitute nawk with awk command. Anbu, thanks a lot.

When i pass the exact string that line gets deleted in the outputfile.

But i want to pass a part of the string and i want whole string to be deleted.

for eg

inputfile

cattle
battle
cat
mattle
cattle

my outputfile should be
cattle
battle
mattle

here i want to check for cat%. I dont know how to do that using nawk.
Please help me out on this.

Best Regards,
gops