Sams Teach Yourself C for Linux Programming in 21 Days presents C programming techniques in a logical and easy-to-follow sequence that helps you understand the principles involved in developing C programs. You'll begin the basics of writing a program, then move on to arrays, pointers, disk input/output, functions, and more. Learn the basics of C, including variables, constants, conditional statements, loops, pointers, data structures, input/output, and functions. This book presents C in the most logical and easy-to-learn sequence, and is geared towards programmers learning the C language for Linux. Also included will be additional material needed to develop and execute programs for Linux.