So you want to learn C programming, then it is always good idea to know about history of C language and reasons why you should learn it.

Basic Topics

• Introduction
  • Keywords and Identifier
  • Variables and Constants
  • C Data types
  • C Input/Output
  • C operators
• Flow Control
  • If...else statement
  • C for Loop statement
  • C while Loop statement
  • break and continue 
  • switch case statement
• Functions
  • Functions Introduction
  • User-defined Function
  • Function Types
  • Scope of Variable
• Arrays
  • Arrays Introduction
  • Types of Arrays
  • Arrays & Functions
  • Strings in C
  • String Functions
• Structures in C
  • Structure Introduction
  • Structure and Pointers
  • Structure and Functions
  • Unions in C

Advanced Topics

• Pointers in C
  • Pointers Introduction
  • Pointers and Arrays
  • Pointers and Functions
  • Memory Management
• Bit-Fields
• Macro Preprocessors
• Type Casting
• Recursion
• Variable arguments
• Dynamic memory allocation
• Command line arguments
• File Management in C
  • File handling in C
  • File Examples
• Additional Resources
  • C Quiz
  • C Exercises
  • C Examples
  • C Library Functions