You've got a bit of a mish-mosh. I think you're trying to read in the entire file into memory, in @file, judging from this:
@file = <FILE>;
However, when you combine that with $/=undef, you get one long string from the <FILE>, which gets put in the first element of the array. TheDamian once gave an excellent description of what $/ does: "it tells Perl where to stop reading".
Two common idioms are:
- undef $/; $var = <FILE>;
This reads the whole file into the scalar variable $var.
- @array = <FILE>;This reads the entire file into @array, one line per element (where "line" is again defined by the contents of $/).
Select one or the other technique; combing both gives strange effects, as you've found.
In the preceding node, Ineffectual has noted some strange things as well. The one I find most perplexing is that you're sub definition is in the middle of a loop. Also, it looks like the error message your die prints after not being able to open the file came from a monastery copy-and-paste: it's got a + in the middle of the $!.
HTH
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