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Answer: How do I print only some letters of this string

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Q&A > input and output > How do I print only some letters of this string contributed by Roy Johnson

nuance made a couple of sub-optimal choices: for instead of while, and the 4-argument substr to actually change $_ rather than the 3-argument form to get what he wants out of it.
while (<DATA>) { print substr($_, 0, 100); }

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