Taking a page from the tutorial Basic debugging checklist use B::Deparse 

$ cat foo
use vars qw( $foo $bar );

$ perl -MO=Deparse foo
use vars ('$foo', '$bar');
foo syntax OK

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In reply to Re^2: use vars - how to use this (copy paste) by Anonymous Monk
in thread use vars - how to use this by JockoHelios

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