Simple Shell is a basic command-line shell program implemented in C language. It provides a minimalistic command-line interface with the following features:
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Command Execution: Simple Shell allows you to execute system commands and programs by typing them in the shell prompt.
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Built-in Commands: In addition to external commands, the shell supports some built-in commands, such as
cdfor changing the current directory andexitfor exiting the shell. -
Command History: The shell maintains a command history, allowing you to recall and execute previous commands using the up and down arrow keys.
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Redirection: You can use input and output redirection with the
>and<operators to read from or write to files. -
Piping: The shell supports command piping using the
|operator, allowing you to chain multiple commands together. -
Tab Completion: Basic tab completion for commands and file paths is available for convenience.
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Signal Handling: The shell handles common signals such as Ctrl+C (SIGINT) and Ctrl+Z (SIGTSTP) for process control.
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Prompt Customization: You can customize the shell prompt to display useful information such as the current working directory or username.
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Compile the Shell:
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To compile the shell, run the following command in your terminal:
gcc simple_shell.c -o simple_shell
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Run the Shell:
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Start the shell by executing the compiled binary:
./simple_shell
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Using the Shell:
- Enter commands at the shell prompt and press Enter to execute them.
- Use built-in commands like
cdandexitas needed. - Utilize features such as input/output redirection, piping, and signal handling.
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Exiting the Shell:
- To exit the shell, use the
exitcommand or press Ctrl+D.
- To exit the shell, use the
You can customize the shell's behavior and appearance by modifying the source code. For example, you can change the prompt format or add additional built-in commands.
If you'd like to contribute to this project, please follow these guidelines:
- Fork the repository on GitHub.
- Make your changes and create a pull request with a clear description of your changes.
- Be sure to adhere to the code style and conventions used in the project.
This project is licensed under the MIT License - see the LICENSE file for details.