since I don't know what's in <../data/text/*.txt>, I have no clue what's going on.

In any case, since you're building that list anyway, why not do this: 

if (grep { $_ eq $passage } @display_files) {
  # filename ok
}
else {
  # not ok
}

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"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re^3: How to avoid Null Byte Injection by Joost
in thread How to avoid Null Byte Injection? by Nik

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