Oops, 

# Keep the last 5.
if (@sets > 5) {
   @sets = @sets[-5..-1];
}

[download]

should be 

# Keep the first 5.
if (@sets > 5) {
   @sets = @sets[0..4];
}

[download]

It's a remenant of an incorrect version I wrote before posting.

(I updated my earlier post to remove the error.)

In reply to Re^3: truncating a text file by ikegami
in thread truncating a text file by dankichi

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