Re: Simple Perl programme using

Apart from all the other comments, it looks like you copied the code from this tutorial. Did you read their copyright statement?

Comment on Re: Simple Perl programme using

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Re^2: Simple Perl programme using by Fletch (Bishop) on May 23, 2007 at 15:19 UTC
One should probably be wary of tutorial sites which: use the incorrect "PERL" rather than "Perl" don't grant any reuse of their code snippets (it's not even a restrictive "you can use this as long as you credit us", it's a flat out "you can't reproduce our code" period) seem to think that hashes may be made sorted (hashes (vanilla, not tied) are by definition unordered; LISTS of keys or values may be sorted . . .) has an example using variable interpolation where they apparently meant to show `+`-as-concatenation operator (last code sample)	[reply] [d/l]

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Re^2: Simple Perl programme using
by Fletch (Bishop) on May 23, 2007 at 15:19 UTC

One should probably be wary of tutorial sites which:

use the incorrect "PERL" rather than "Perl"
don't grant any reuse of their code snippets (it's not even a restrictive "you can use this as long as you credit us", it's a flat out "you can't reproduce our code" period)
seem to think that hashes may be made sorted (hashes (vanilla, not tied) are by definition unordered; LISTS of keys or values may be sorted . . .)
has an example using variable interpolation where they apparently meant to show +-as-concatenation operator (last code sample)