JustAnotherShell is a custom Unix-like shell implemented in modern C++23. It demonstrates command parsing, execution, and extensible built-in commands, providing a foundation for learning about shell internals and systems programming.

• Command Parsing: Tokenizes and parses user input into commands and arguments.
• Built-in Commands: Easily extendable with custom built-in commands via a registry.
• External Command Execution: Runs system commands using execv and manages processes with fork/waitpid.
• Custom Readline: Uses a custom readline implementation for user input (see src/ReadlineCus/).
• Redirection Support: Handles input/output redirection (work in progress).
• Modular Design: Organized into components: Scanner, Parser, Executer, InBuilt command registry, and more.

• src/ — Source code (core logic, built-ins, parser, executor, etc.)
  • ReadlineCus/ — Custom readline implementation
• CMakeLists.txt — Build configuration
• build/ — Build output (created after compilation)

• C++23 compatible compiler (e.g., g++ 13+)
• CMake 3.13+
• GNU Readline library

mkdir -p build
cd build
cmake ..
make

./shell

This project is licensed under the GPL-3.0 License.