my $tempfile = "$tempdir/$ENV{'REMOTE_ADDR'}";

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Quotes on a bareword hash key are redundant. 

open (TMPFILE, "$tempfile")|| ($nofile = 1);

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You shouldn't quote variables: What's wrong with always quoting "$vars"?    You are adding extra work for perl which has to interpolate the variable and then copy its contents to the string.

Because open returns true on success or false on failure you could simply do: 

my $nofile = open TMPFILE, $tempfile;

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my (@tmpfile) = <TMPFILE>;

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The parentheses are superfluous because an array already provides list context.

In reply to Re: File open issue by jwkrahn
in thread File open issue by Anonymous Monk

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