Be sure to read the perldocs on the 'system' and backticks commands:

   perldoc -q backticks
   perldoc -q system
   perldoc -f system
[download]

so that you're aware of all the implications - security and otherwise. If you use 'system', be aware that system does give back a return code, and, there is a 'more right' way to execute 'system' (and backticks) so that the shell is not involved.

HTH.