I much prefer the 'unless' version of this as for me (who needs new glasses) I can sometimes miss the ! so I prefer. 
unless(open( FH, "<$file") ) {
    # Error code, logging, bits, bobs (etc etc)
    die "Cannot open $file :$!\n";
}

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As a matter of personal taste I think this is more natural (to me).. unless this do this ;P

In reply to Re: Re: 'or' vs '', '&&' vs 'and' by simon.proctor
in thread 'or' vs '', '&&' vs 'and' by Anonymous Monk

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