Given all the gloomy responses above, you won't believe how simple this is with Tie::File, but just try it.
use strict;
use warnings;
use Tie::File;
tie my @records, 'Tie::File', 'file.txt';
shift @records;
Update: Thanks are due to BrowserUK for the benchmark below.
It's a beautiful example of a tradeoff between machine time and the time of
- developers,
- reviewers, and
- maintainers.
Further thought: The read-seek-write solution belongs in Tie::File under the fixed-record-length option that Dominus has listed as TO DO. Then the rest of us could enjoy the best of both worlds.
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