About It

• It is a fully functional Shell for Linux Terminals, and works just as any other famous shell, with features primarily based on Bash, Zsh and Fish.
• It was done in the C Programming Language for the Rio's Ecolle 42 minishell project.
• Also, there where some limitations, regarding libraries permitted or not, and according to 42's Coding Norme, imposed in the project.

Some Features

• Perfectly capable of parsing a prompt and launching executables with arguments.
• It as suport to piping between executables.
• Any common token will work as intended, except for && and ||, which weren't needed, but won't cause any error.
• Quotes like "" and '' work the same as Bash.
• You can separate commands with ;, as well as use redirections >, <, >>, << and pipes |.
• Environment variables are handled, and expand to it's values when used, like $HOME, including the return code $?.
• You can use Ctrl-C to interrupt and Ctrl-\ to quit a program, as well as Ctrl-D to throw an EOF, same as in bash.
• A few of the built-in functions where made as well, meaning we don't call the executable, I re-coded them directly. It's the case for echo, pwd, cd, env, export, unset and exit.

Usage

• You will need the external "readline" library installed in your machine.
• It functions just as any other shell program would. Simply clone the repository, and then compile it using make. It will then generate a minishell executable.
• Running this program will change the shell you're currently in, to the minishell.

./minishell

• In it, you're able to do about anythink you would be in another common shell, for example, using commands from the enviromental path, such as ls, echo, and exit, which ends the program.

• And as the minishell was done to be able to recognize terminal signals, it can be ended pressing CTRL-D as well, like Bash.

Using it as default Shell

To use it as your default Shell, you will need to, either:

• Move the executable to the /bin/bash directory, and then change your Terminals default shell to it, if it's supported.

or

• Add a line containing /path/to/executable/minishell to the end of whatever "rc" file your current Shell uses. For example, if it's Bash, then you will need to add that line at the end of your ~/.bashrc file.

---

Done with a lot of 💜... aand C, by IttoSanzzo.