1. De rigeur snarky answer to the question you've asked: yes.
2. Somewhat more helpful answer to the question you should have asked: perlintro, and while we're at it, How to RTFM.
3. Hand-fed answer:

   # update Of course that should be '\' ... 
   $foo = '/' . $bar;
   [download]

If not P, what? Q maybe?
"Sidney Morgenbesser"