Perl Control Structures 

• Some of the most powerful tools of Perl programming are control structures. Control structures are used to create the basic logic that drives many of the routines used in CGI applications. These control structures use Boolean logic to imbue your script with the intelligence necessary to manage the diverse needs of the clients with the abilities and requirements of the server. 

Additional Resources:

• Perl 
• Perl Resources 

Using the split and join functions
Table of Contents
Statement Blocks