Introduction to Perl
This course is an introduction to programming in Perl. It starts from the absolute basics and introduces enough information for attendees to be writing useful programs by the end of the course.
The course can be run over one day in lecture style or over two days including practical exercises.
This course will be useful to anyone who want to starts writing programs in Perl. Attendees need no previous knowledge of Perl although it will be useful if they understand a little about programming. Whether you are a sysadmin who wants to use Perl as a glue language, a programmer who wants to use it for data munging or someone who wants to write web applications, this course will give you the basic knowledge you need.
After attending this course you will be able to:
- Write simple but useful Perl programs
- Use Perl’s built-in operators and functions
- Use loops and subroutines to simplify your programs
- Understand simple regular expressions
- Find and install third-party libraries
- What is Perl
- Perl’s name
- Typical uses of Perl
- What is Perl like?
- The Perl Philosophy
- Hello World
- Running a Perl program
- Command line options
- What is a variable?
- Variable names
- Types of Perl variable – scalars arrays and hashes
- Declaring variables
- Scalars, arrays and hashes in detail
- Perl’s special variables
- The print function
- The file input operator
- What are operators and functions?
- Various types of operators
- Some useful functions
- Introduction to Boolean expressions
- if, elsif and else
- while, until, for and foreach
- What are subroutines?
- Defining subroutines
- Calling subroutines
- Subroutine arguments
- Subroutine return values
- What are regular expressions?
- The match, substitution and binding operators
- Metacharacters and quantifiers
- The smart match operator
- What is smart matching?
- What is a module?
- What is CPAN?
- Installing modules
- Using modules
- Some useful modules
- Web sites
- Mailing lists
- The Perl community
This course will be run by Dave Cross.