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in reply to Re: IO::Tee problem (Well, problem with my brain, anyway)
in thread IO::Tee problem (Well, problem with my brain, anyway)

The problem is that the input file triples, while the output file doubles.

As far as I can tell, I'm slurping the entire file (previous to any additions), and then foreaching over a simple array and printing the file once. I should get a doubled copy in the input file, and a single copy in the output file.

I've checked (with a print statement) and @lines contains only a single copy of the input file.

for(split(" ","tsuJ rehtonA lreP rekcaH")){print reverse . " "}print "\b.\n";

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Re^3: IO::Tee problem (Well, problem with my brain, anyway)
by apl (Monsignor) on Mar 23, 2009 at 17:15 UTC
    Why do you want to echo your input back to your input file?
[reply]

      I was testing a statement made in Intermediate Perl; I don't really have a concrete use in mind. Right now, my main goal is to find out why it's doubling the output, so I can know how it works (and what I'm missing/doing wrong, assuming it's not an oddity in IO::Tee or something).

      for(split(" ","tsuJ rehtonA lreP rekcaH")){print reverse . " "}print "\b.\n";
[reply]
[d/l]

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