Beginner Perl Maven video course - video

These are earlier recordings and they are a bit noisy, sorry for that.

You can watch the episodes on YouTube, or on this site. Some of the pages here have extra text.

Table of Contents

1. Introduction

1. Welcome and installation

2. Editors, IDEs

3. Hello World

4. Safety net (use strict; use warnings;)

5. Debugging

6. Comments

7. Documentation of Perl

8. POD - Plain Old Documentation

9. Perl on the command line

10. Exercise: Hello World

11. Solution: Hello World (part 1)

12. Solution: Hello World (part 2)

2. Scalars

1. Scalar values and variables

2. Common Errors

3. Variable interpolation - User Input and Output - chomp

4. Numerical Operators

5. String Operators

6. If statement

7. Comparison Operators

8. String to Number Conversion

9. Compare Values

10. undef

11. Logical Operators

12. True and False values

13. Short circuit

14. String functions: index

15. Substr

16. String in Double quotes

17. String in Single quotes

18. Scope of Variables

19. rand() and int()

20. Here documents

21. Exercise: rectangular

22. Solution: Area of rectangular

23. Solution: Area prompt and warn if values are less than 0

24. Solution: Concatenation

25. Exercise: Number guessing game

26. Solution: Number guessing game

3. Files

1. die, warn, exit

2. Open File

3. Open File All

4. Open File with Error Handling

5. open or die

6. No such file

7. Read one line

8. While loop

9. Read file line by line

10. Write to file

11. Sum numbers in a file

12. Debug the sum numbers script

13. Analyze Apache log file

14. Old Style Open

15. Exercise: Add more statistics

16. Solution: Add more statistics

17. Exercise: Write report to file

18. Solution: Write report to file

4. Lists and Arrays

1. Lists in Perl

2. List Assignment

3. Foreach Loop Over List

4. Creating and Array

5. Array Assignment

6. Exercise: more statistics

7. Solution: more statistics (placeholder)

8. Array indexes

9. Array indexes (screencast)

10. Looks like number

11. Command line parameters

12. Command line parameters (screencast)

13. Processing command line using Getopt::Long

14. Processing command line using Getopt::Long (screencast)

15. Process CSV file

16. Process CSV file - short version

17. One-liner - Sum of values in CSV file

18. Process CSV file - using Text::CSV_XS

19. Join

20. Exercise: improve the color selector

21. Solution: improve the color selector

22. Solution: improve the color selector - check input

23. Solution: improve the color selector - force

24. Solution: improve the color selector - colors.txt

25. Solution: improve the color selector - --filename

26. Exercise: improve the number guessing game

27. Solution: improve the number guessing game - multiple guesses

28. Solution: improve the number guessing game - exit

29. Solution: improve the number guessing game - s for show

30. Solution: improve the number guessing game - n for next game

31. Solution: improve the number guessing game - d for debug mode

32. Solution: improve the number guessing game - m for move mode

5. Advanced Arrays

1. The Year of 19100

2. Array in Context

3. Context Sensitivity

4. Filehandle in SCALAR and LIST context

5. Slurp

6. Pop and Push

7. Loop controls: next and last

8. shift and unshift

9. shift

10. reverse

11. sort

12. Ternary operator

13. Count Digits

14. Exercise: Display unique rows of a file

15. Exercise: sort mixed string

6. Functions and Subroutines

1. Functions and Subroutines

2. Defining Subroutines

3. Exercise: Number guessing in sub

7. Hashes

1. A hash and its uses

2. Creating a hash

3. Creating a hash from an array

4. Hash in scalar context

5. Fetching data from hash

6. Exists and Delete in hash

7. Counting words in a file

8. Dumping hash

9. Exercise: parse HTTP values

10. Solution: parse HTTP values

11. Exercise: Improve color selector

12. Solution: Improve color selector

13. Exercise: Sort scores

14. Solution: Sort scores

15. Exercise: Improve Apache log analyzer

16. Solution: Improve Apache log analyzer

17. Exercise: Parse variable width fields

18. Solution: Parse variable width fields

8. Regular Expressions - part 1

1. Regexes

2. Where can I use regexes

3. Simple use of regex

4. Finding a string in a file

5. Single character match

6. Match any character

7. Character classes

8. Negated character class

9. Optional characters

10. Any Number of any Characters

11. Quantifiers

12. Quantifiers on Character classes

13. Exercise: Regexes 1

14. Solution: Regexes 1

15. Solution: Regexes 2

16. Solution: Regexes 3

9. Regular Expressions - part 2

1. Regex Alternatives

2. Regex Capturing

3. Regex Anchors

4. More about Character classes

5. Special character classes

6. Exercise: Match numbers with regex

7. Solution: Match numbers with regex

8. Exercise: hexa, octal, binary

9. Solution: hexa, octal, binary

10. Exercise: Roman numbers

10. Regular Expressions - part 3

1. m/ for matching regexes

2. Case insensitive regexes using /i

3. multiple lines in regexes using /m

4. Single line regexes using /s

5. /x modifier for verbose regexes

6. Substitution

7. Global substitution with regexes

8. Greedy regex quantifiers

9. Minimal Regex Matching

10. trim

11. Fixing assembly with Perl

12. split with regex

13. Fixing dates using Regexes

14. Exercise split HTTP using Regexes

15. Solution: split HTTP using Regexes

16. Exercise: split path - filename/dirname

17. Solution: split path - filename/dirname

18. Exercise: sort SNMP numbers

19. Solution: sort SNMP numbers

20. Exercise: parse hours log file and create time report

21. Solution: parse hours log file and create time report (placeholder)

22. Exercise: parse INI file

23. Solution: parse INI file (placeholder)

24. Exercise: parse Perl file

25. Solution parse Perl file (placeholder)

11. Shell to Perl

1. shell -x

2. Running external programs

3. Unix and DOS commands

4. file globbing

5. rename files

6. directory handle

7. File::HomeDir

8. more Unix commands

9. File::Spec

10. File::Find

12. CPAN

1. Using procedural module

2. Using object oriented module

3. Changing @INC

4. Changing @INC relative path

5. What is CPAN

6. Some interesting CPAN modules

7. Installing modules from the OS vendor

8. Installing Perl modules with cpan

9. search.cpan.org

10. CPAN Testers and CPAN Ratings

13. Applications

1. Create Linux user account
2. Diskspace usage: df in Perl
3. Reporting diskspace usage on mail server
4. disk usage: du
5. Send email with attachments
6. Reading Excel file
7. read fixed-width records
8. Processing config file