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Very nice. ++

I like the twisted logic but the best part is the bare $ at the end. I had to run it through B::Deparse to see what was happening:

$ perl -MO=Deparse -pe '$_=$' LINE: while (defined($_ = <ARGV>)) { $_ = $; } continue { die "-p destination: $!\n" unless print $_; }

It shows that in this case $ gets interpreted as $; the subscript separator. However, this means that your code inserts an extra character in the file as shown by this:     perl -pe '$.-32or$_=$' file | cat -A

But I'm still not sure why perl inserts that semicolon. It doesn't in other cases:

$ perl -MO=Deparse -pe '$_=$.' LINE: while (defined($_ = <ARGV>)) { $_ = $. } continue { die "-p destination: $!\n" unless print $_; }

Anyone have an explanation for this last point?

Update: blakem's answer below is right. This last case is a perl 5.005 issue with B::Deparse.


In reply to Re: Re: Save all but line 32! by jmcnamara
in thread Save all but line 32! by bronto

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