http://www.perlmonks.org?node_id=1001428


in reply to unwanted ARGV in subroutine

my $text = do { local( @ARGV, $/ ) = $infile ; <> } ;
This should locally change @ARGV to contain $infile and load the whole file into $text. Maybe the file is huge and you have just to wait a bit?
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

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Re^2: unwanted ARGV in subroutine
by runrig (Abbot) on Oct 29, 2012 at 22:19 UTC
    And if the file is huge, the OP shouldn't be loading it into memory, and should write to a temp file, and then rename it at the end.
[reply]

      Hi rizzler

      Try this

      sub addheader{
    my($infile,$header)=@_;

    open(FILE, "$infile");
    my $text=do {local $/; <FILE>};
    close FILE;

    open(FILE,">$infile");
    print FILE $header;
    print FILE $text;
    close FILE;
}

      [download]
[reply]
[d/l]
        Please don't try that :) it doesn't use error checking ... If you want to copy a file use File::Copy, for moving File::Move
[reply]

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