In this movie, you'll get a comprehensive overview of assignments.
- [Voiceover] An assignment is a statement…that assigns a value to a variable.…Here's a working copy of hello.pl…from chapter three of the Exercise Files.…I'm gonna come down here…and create a simple assignment.…I'll go ahead and run that, and you see the result is 47.…The equal sign serves as a simple assignment operator.…In this case, it assigns the value of a literal constant,…the number 47, to the variable $x.…We'll talk about scope later in this chapter,…but for now, just know that the my keyword…gives the variable local scope for this file.…
So, you can assign a literal constant like that,…or you can assign a value from another variable.…You can do something like this.…And we'll go ahead and run that,…and you see the result is the same 47.…Or you can assign a value from any expression…that returns a value.…So, you could say something like this.…And I'll go ahead and run that,…and now the result is 157.…Perl also supports compound assignment operators,…which it's borrowed from the C language,…and so we can do something like this,…
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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