Shell Programming and Scripting

I have an encrypted password file, and I've created a simple script to search the password file for a particular record. There are multiple lines per record, so I'm using a record delimiter.

Code:

#!/bin/bash
PATTERN=$1
openssl des3 -d -salt -in ~/docs/pass.des3 | awk '{ FS="\n" ; RS="*" } '/$PATTERN/' { print }'

It works fine but I would like the awk search pattern to be case insensitive. I've search a lot and not found a suitable solution, and as the file is encrypted, I'm pretty certain I have to run the openssl decrypt first and pipe the output to awk, rather than invoking the file directly in the awk command.

I don't know if this is a stupid idea, but perhaps I can decrypt file and concatenate the entire output to a variable, THEN use a case insensitive grep to match from the variable, THEN load that match into another variable and use it as the awk pattern. I've tried implementing this but have failed to get it to work.

What would be the best way to get this to work as a case insensitive patten?

Hint:

Code:

awk -v STR="There" 'BEGIN{t="HI THERE"; if(index(tolower(t),tolower(STR))) print "FOUND"}'

Thanks for the hint, but I think I might need more than a hint I'm still quite the beginner!

I've had luck with tolower, but only when invoking a (plain) text file from within the awk command. As I'm working with an encrypted file, I really need someone to show me how I can get it to work when piping the output to awk.