Tutorial: Building a Simple Unix Shell in C

This tutorial walks you through creating a basic Unix shell in C. The author details the shell's lifecycle: initialization, command interpretation, and termination. Key aspects covered include reading user input, parsing commands, executing programs using fork() and exec(), and handling built-in commands like cd, help, and exit. Dynamic memory allocation using malloc() and realloc() is emphasized, and the use of getline() is explained. While simplified (no piping, redirection, or globbing), the tutorial provides a solid foundation for understanding shell programming in C.