Charles K. Clarkson recently replied to Sreedhar Reddy in which one of
the corrections he made was:
open my $fh, '<', $input_file or die qq(Cannot open "$input_file": $!);
It seems that Charles' habits are to prevent excess typing and to 'be
lean on variables' as he phrased it I believe.
When I have opened a file, I have always done:
open (FILE, $file) || die "Cannot open $file :$!";
A couple of things different.
- I use a FILEHANDLE, where Charles used a variable.
- Charles explicitly said the file was being opened for reading. My
understanding is that is the default. I assume that Charles did this for
clarity.
- Charles opted to use qq() which cause him to have to enclose the
$input_file in "".
My question is, which way is better, and why is it better? My assumption
is Charles' method is better, but I would appreciate knowing why.
Thanks,
Mike
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