Personally, I think you're trying to do too much in that one line. It's not immediately clear when I look at it whether it means 
($arg = shift || die "takes one arg") unless -M $file >7;

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or
$arg = shift || (die "takes one arg" unless -M $file >7;)

[download]
It would, IMO, be much better written as two separate statements.

In reply to Re: shift or die unless by dsheroh
in thread shift or die unless by joec_

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