Thank you so much for the help. So I just ran the first command


 my $count = grep /\Q$SEARCH_TERM\E/ && /Z/, @C_LOC_ARRAY;

on my file which is 1.4 GB in size. It takes 51 times longer than a simple bash command line grep. It also uses 16 GB of virtual RAM.

By mess I was saying nested for loops can get ugly when I have thousands of search terms in one file to search against a database. I'm simply trying to find out how many times each search term appears in the database.

In reply to Re^2: Nested greps w/ Perl by wackattack
in thread Nested greps w/ Perl by wackattack

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