The proper way to open()

Roger Burton West roger at
Mon Jan 30 16:46:00 GMT 2012

What's a good way of opening a file as read-only, and failing if it
doesn't exist? open() just returns a handle that's not obviously
invalid, which strikes me as odd behaviour. At the moment I'm doing
something like:

  open IN,"<$cfg";
  if (eof IN) {
    die "bad config file $cfg\n";


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