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Here's a quick intro.

In your case you would not have any values in the hash, just keys. You'd read the smaller file and add the lines to a hash as keys (the values are irrelevant, use 1 for example). Then as you would read the other file you'd just check whether exists $hash{$line} and you'd know right away whether such line was in the first file or not.

Jenda
Enoch was right!
Enjoy the last years of Rome.


In reply to Re^3: Some Basic Help. by Jenda
in thread Some Basic Help. by invaderzard

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