Scalars

1. Scalars intro
2. Scalar values
3. undef
4. Numbers - integers, real or floating-point
5. Strings
6. Scalar variables (use my)
7. Sigils and variables
8. Common error messages
9. Greeting with a name, Variable interpolation
10. User Input
11. chomp
12. Numerical Operators
13. Autoincrement
14. String Operators
15. String - Number conversion
16. Conditional statements: if
17. Syntax of if statement
18. Comparison operators
19. Compare values - examples
20. undef, the initial value and defined
21. Boolean expressions (logical operators)
22. Boolean values: TRUE and FALSE
23. Your Salary is in Danger - Short-Circuit
24. Exercise: Rectangular
25. Exercise: Rectangular prompt
26. Exercise: Rectangular warn
27. Exercise: Concatenation
28. Exercises: Simple Calculator
29. Solution: Rectangular
30. Solution: Rectangular prompt
31. Solution: Rectangular warn
32. Solution: Concatenation
33. Solution: Simple Calculator
34. Solution: Simple Calculator (using eval)
35. String functions (length, lc, uc, index)
36. String functions (index, rindex)
37. String functions (substr)
38. Strings - Double quoted
39. Strings - Single quoted
40. Scope of variables
41. Scope of variables - 2
42. Scope of variables - 3
43. Scope of variables - 4
44. Scope of variables - 5
45. Random numbers
46. Here documents - double quotes
47. Here documents - single quotes
48. Exercise: Number Guessing game
49. Solution: Number Guessing game