in reply to Iterating single line within a For Loop

for(<INFILE>) (note:no capital F), slurps the whole file before starting to iterate. You need to use while(<INFILE>).

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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In the absence of evidence, opinion is indistinguishable from prejudice. Agile (and TDD) debunked

In Section Seekers of Perl Wisdom