When you want to avoid duplicates, the automatic answer is 'use a hash'.

Simply put some unique value (or the whole line) as a key for a hash. I'll let you decide what is an appropriate value for this key - it should be easily generated, and unique for each identical record.

Do a:
$hash{$key}++;
when you find a value you want for the first time.

Then, skip that line when you encounter the same key again. Put:
next if(exists $hash{$key});
at the top of your loop.

In reply to Re: String Duplication by jmanning2k
in thread String Duplication by Anonymous Monk

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