Detecting duplicates are what Tiggers and hashes do best:
while (<LOG>) {
   # Assume name of program is in $_
   chomp;
   $hash{$_}++;
}

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The hash key will be created and the value set to undef (zero), then incremented on the first time around. Subsequent occurances of the same key will increment the value.

By the way, a small thing, but be careful when you use a leading zero on a numeric - it converts it to octal.

In reply to Re^3: Perl Hash Files by cdarke
in thread Perl Hash Files by blundell

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