C-Shell

C-Shell is a simple Unix-like shell implementation written in C.

Features

• Command execution: Execute external commands and built-in commands.
• Built-in commands: Supports built-in commands such as cd, mkdir, cat, help, and exit.
• Input/output redirection: Supports input/output redirection using < and > operators.
• Signal handling: Gracefully handles signals such as SIGINT (Ctrl+C) and SIGTERM.
• Colorful prompt: Displays a colorful prompt to enhance user experience.

How to Use

1. Run the shell using the provided run.sh script:

./run.sh

2. You will see the C-Shell prompt (>). You can type commands and press Enter to execute them.

Built-in Commands

• cd: Change directory.
• mkdir: Create a directory.
• cat: Display the contents of a file.
• help: Display information about the shell and built-in commands.
• exit: Exit the shell.

Input/Output Redirection

C-Shell supports input/output redirection using the < and > operators. For example:

cat  input.txt > output.txt

Signal Handling

C-Shell gracefully handles signals such as SIGINT (Ctrl+C) and SIGTERM. Pressing Ctrl+C will exit the shell.

Acknowledgements

A big thank you to Stephen Brennan for his comprehensive guide on writing a shell in C, which served as a valuable resource and reference for this project.