Thank you all for your help! It's not very pretty, it could use some work, but...it actually DOES work! Here is my final if anyone is interested, and thanks again! my %hash=(); open INPUT, "<project.txt"; open OUTPUT, ">>project.out"; while(<INPUT>) { next unless /PW\#/io; next if exists $hash{$'}; print OUTPUT "$'"; $hash{$'}=undef; } close INPUT; close OUTPUT; afasch01

In reply to Re: creating a new file with unique values by afasch01
in thread creating a new file with unique values by afasch01

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