Perl Programming Tutorial.docx

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Perl Programming Tutorial

 

Article Index

1. Using The Perl interpreter

1.1. Find Perl Interpreter

1.2. Implicit Execution

1.3. Explicit Execution

2. Simple Perl script

3. Current path to Perl modules

4. Variables

4.1. Using Perl default variable $_

4.2. Defined Function

4.3. Scalar variable

4.3.1. Single-Quoted Strings

4.3.2. Double-Quoted Strings

4.3.3. String Operators

4.3.4. Non-Decimal Integers

4.3.5. Scalar Constant Variable

4.3.6. String And Numeric comparison Operators

4.4. Lists

4.5. Arrays

4.5.1. Create and print array

4.5.2. Push and Pop Arrays

4.5.3. Determine The Length of an Array

4.5.4. Merge and Append Arrrays

4.5.5. Sort Arrays

4.5.6. Delete Element from an Array

4.6. Hash

4.6.1. Create Hash

4.6.2. Add Element to a Hash

4.6.3. Print Hash

4.6.4. Merging Hashes

5. Perl Regular Expressions

5.1. Regular Expressions and Special Characters

5.2. Match Characters

5.3. Substitution

5.3.1. Substitution with evaluation

5.4. Translation

5.5. Classes

5.6. Quantifiers

5.7. Assertion

5.8. Multiple Match

5.9. Regular Expression Extention

5.10. Grouping

6. Perl Subroutines

6.1. Create Simple Perl Subroutine

6.2. Pass and Return Values

7. Perl operators

7.1. Precedence of Perl operators

7.2. Arrow operator

7.3. Increment and Decrement operators

8. Loops

8.1. Perl for loop

8.2. Perl while loop

8.3. Perl until loop

8.4. Perl foreach loop

9. Getting User Input

9.1. Reading Command Line Arguments

10. File Handling

10.1. Read File Passed from the Command line

10.2. Open File for Read and Write

10.3. Determine Number of Lines in a File

10.4. Determine Number of Characters in a File

10.5. Seek position within a File

11. Simple Perl Arithmetics

12. Perl Octal, Hexadecimal, And Decimal Conversions

13. Create Perl Package

14. Databases connections

14.1. Perl MySQL database connection

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