minishell - @42Wolfsburg

project about creating your own simple (mini)shell, taking bash as reference.

our very first group project, that i got to work on with marianna (ง •̀_•́)ง (ง •̀_•́)ง

description

minishell is a re-creation of a basic unix shell, which is a tool that lets users interact with the computer by typing commands.

it replicates key features of a full-fledged shell, such as command parsing, execution, and basic file manipulation.

these are some resources we used:

• shell command language

• lexical analysis

• playlist with videos about all things minishell

• writing your own shell

• let's build a linux shell - a tutorial

• minishell map spreadsheet (744 test cases)

• reallyshell: extensive minishell tester by btvildia

how to use minishell

1. clone this repository: git clone git@github.com:idleira/minishell.git minishell && cd minishell;

2. use make to compile the project;

3. run the program with ./minishell

4. have fun ⸂⸂⸜(രᴗര๑)⸝⸃⸃

5. to exit the program simply press ctrl + d or type exit;

6. to clean up:

   • use make clean to remove .o files;

   • use make fclean to clean up the project directory by removing all generated files.

features

→ command-line interface: minishell greets you with a prompt, ready to execute your commands swiftly;

→ command parsing and execution: it efficiently parses and executes commands, from listing files to running scripts;

→ built-in shell commands: minishell supports built-in commands for easy directory navigation and status checks:

command	description
pwd	print name of current/working directory
cd	change the shell working directory (with a relative or absolute path)
env	print the environment
echo	echo the string(s) to standard output. -n flag: do not output the trailing newline
export	set export attribute for shell variables
unset	unset values of shell variables
exit	exit minishell with the exit status specified

→ environment variable management: you can easily set, get, and manage environment variables in Minishell;

→ input/output redirection and piping: it simplifies input/output redirection and command piping;

→ signal handling and process management: minishell effectively manages processes and handles signals.

limitations

→ our minishell doesn’t support command chaining with ;, &&, or ||, but excels in other features.

completing this project was both challenging and demanding, pushing us to the limits of our coding abilities. ᕦ(ò_óˇ)ᕤ

however, it also provided invaluable learning experiences that have given us the confidence to tackle almost any programming challenge.

a huge thank you

to marianna for collaboration — it was a great experience working together. (´｡• ᵕ •｡`)♡

our final grade: