Shell Script - comparing lines of text, deleting matches
- by SirRatty
Hi all, I've done some searching for this but cannot find what I'm after, specifically.
I have two files: "a.txt", "b.txt".
Each contains a list of email addresses, separated by newlines.
For all lines in "a.txt", I need to check for a match anywhere in "b.txt". If so, the email address in "a.txt" needs to be removed.
(Alternatively, a new file "c.txt" could be created with the output if that is easier.)
I'm using Mac OS X, so am looking for a shell script that could help, or pointers to how I'd go about constructing the script. Thanks for any help.
