This repository contains the source files for the "Let's Build a Linux Shell" tutorial.

How to use the code

You need to download this repository to your computer, then compile and run the code.

Downloading the repository

Click on the green "Clone or Download" button on the top-right, then click on "Download Zip" to save the file on your computer.

Extracting the archive

Open a terminal emulator (GNOME Terminal, Konsole, XTerm, or what-have-you), and navigate to the directory where you downloaded the ZIP file:

cd ~/path/to/zip

Extract the archive and navigate to the extracted directory:

unzip lets-build-a-linux-shell-master.zip

Compiling the shell

First, navigate to the directory in which you've extracted the downloaded archive:

cd lets-build-a-linux-shell-master/

If you want to compile and run the shell from Part II/III of the tutorial, you can do so by navigating to the subdirectory and then running gcc:

cd part2-3/
gcc -o shell main.c source.c scanner.c parser.c node.c executor.c prompt.c

If you want to compile Parts IV and above, navigate to the subdirectory and run make:

cd part4/
make

Running the shell

Now you can run the shell by invoking:

./shell