Get a quick introduction to Perl syntax.
- [Voiceover] Hello World is a very simple,…complete program commonly used…to demonstrate the syntax of a language…or to test a new development environment.…This is a working copy of hello.pl…from chapter two of the exercise files,…and this is a typical Hello World written in Perl.…This is not the shortest or the most minimalist version…of Hello World.…Rather, this version is designed to demonstrate…how to construct a simple Perl script.…So let's take a look at this Hello World script.…
So here on the first line,…this is commonly called a shebang line.…You'll notice that it starts with a pound sign…and then an exclamation point,…and then it has the path to the Perl interpreter.…So this is a common Unix technique…for running a script.…The pound sign indicates to the script language itself,…in this case Perl, that this line is a comment…and not to interpret this as code.…And then if the pound sign is followed immediately…without any spaces or any other characters,…followed immediately by an exclamation mark,…then those two characters together…
Watch to learn the details of the Perl syntax, from variables, conditionals, loops, and data structures to regular expressions, functions, and references. A quick-start guide is included for experienced developers who want to get up and running with Perl 5 fast, and the entire course is recommended for both new and experienced programmers alike. Later chapters cover file handling and reusing code with Perl modules, plus Perl best coding practices.
- Understanding Perl's general syntax and the anatomy of a Perl script
- Writing statements and expressions
- Creating assignments
- Working with variables and strings
- Using data types effectively
- Defining logical flow with conditionals and loops
- Using special variables
- Using Perl operators
- Performing simple Perl programming tasks with expressions
- Matching data
- Defining and calling functions
- Using references
- Handling files in the file I/O
- Using built-in functions
- Reusing code with modules
- Coding with Perl best practices
Skill Level Intermediate
1. Setting Up
About Perl3m 36s
2. Quick Start
3. Basic Syntax
4. Values and Variables
7. Special Variables
9. Regular Expressions
11. References and Structures
12. File I/O
13. Built-In Functions
15. Best Practices
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