Minishell is a command-line shell program, inspired by Bash, built using the C language and libc functions. It follows a similar algorithm and steps as tokenization, parsing using a tree data structure, expanding, and execution of commands. This project aims to provide a basic understanding of how shells work and offers a simplified implementation of a command-line interpreter.
- Command Execution: Minishell allows the execution of various commands, including built-in commands and external programs.
- Bash-like Syntax: The shell supports a subset of the syntax used in popular shells like Bash, making it familiar and easy to use.
- Tokenization and Parsing: Minishell employs a tokenizer and parser to break down user input into meaningful tokens and parse them into a command structure.
- Variable Expansion: The shell supports variable expansion, allowing users to utilize and manipulate environment variables.
- Redirection and Pipes: Minishell provides the functionality to redirect input/output and pipe output between commands.
- Signal Handling: The shell incorporates signal handling, allowing for graceful termination and handling of signals such as Ctrl+C.
To get started with Minishell, follow these steps:
- Clone the repository:
git clone https://github.com/yrhiba/mnsh/ - Navigate to the project directory:
cd minishell - Compile the code using a C compiler:
make all - Run the shell:
./minishell
Once Minishell is running, you can start entering commands. Here are a few examples to get you started:
- Execute an external program:
ls -l - Use built-in commands:
cd <directory>orecho <message> - Redirect input/output:
cat file.txt > output.txtorgrep "pattern" < input.txt - Pipe output between commands:
ls -l | grep ".txt"
For more information on available commands and features, refer to the documentation within Bash.