Use the pragma strict tells the compiler to generate three types of errors
An error for any variables used before it was declared
An error if your code [...]
Perl is very forgiving of strange and sometimes wrong code, which can mean hours spent searching for bugs and weird results.
Turning on warnings helps uncover [...]
Use :
1. The method is used only for the modules(only to include .pm type file)
2. The included objects are verified at the time of compilation.
3. No Need to [...]
Perl comes with documentation as standard, including a complete set of manual pages that can
be accessed with the perldoc program,
use the command line for [...]