A Mini Linux Shell in C

• From parser.c: Tokenizes the command line input and builds the pipeline structure.
• From executor.c: Executes a single command in a new process using fork and exec.
• From pipeline.c: Manages the creation of pipes to connect multiple commands.
• From jobs.c: Handles the bookkeeping of all background and stopped jobs.
• From fg_bg.c: Implements the logic for the built-in fg and bg commands.
• From signals.c: Installs custom handlers for signals like SIGINT, SIGTSTP, and SIGCHLD.
• From main.c: Provides the main entry point and the primary loop for the shell.