There are a couple different ways, which you should read about:

• a series of "backtick" statements (a.k.a. the "qx" operator) -- look for "qx" under "quote-like operators" in the "perlop" man page ("perldoc perlop").
• a series of "system()" calls -- look up the "system" builtin function ("perldoc -f system").

The differences between those two might not matter for your particular needs, but you should read about them anyway.