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simple_shell
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ALX Group project- Simple Shell
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<h1 align="center"> 0x16. C - Simple Shell </h1> <p align="center"> 📄 🚀 </p> <p align="center"> <strong> Description </strong> </p> <p align="center"> This project is an implementation of the shell created as a Milestone Project for the C code at ALX Africa Software Engineering. </br> The gates of shell is a project in the first trimester, that helps student to understand the advanced concepts behind the shell program include process, system call, bit manipulation, file managment, error handling ... </br> Shell is a simple UNIX command interpreter that replicates functionalities of the simple shell (sh). </br> This program was written entirely in C Language. </p> ## COPYRIGHT Copyright (C) 2022 by [**Reny Kipkoech**](https://github.com/Tr-reny) and [**Stellah Mbao**](https://github.com/StellahMbao) </br> All rights reserved ## Description : This is a shell written in [C](https://en.wikipedia.org/wiki/C_(programming_language)). It is based on [the Thompson Shell](https://en.wikipedia.org/wiki/Thompson_shell). ## Environment : Our shell was built and tested on Ubuntu 14.04 LTS. ## Features * Display a prompt and wait for the user to type a command. A command line always ends with a new line. * If an executable cannot be found, print an error message and display the prompt again. * Handle errors. * Hndling the “end of file” condition (Ctrl+D) * Hanling the command line with arguments * Handle the PATH * Support the exit features and the exit status * Handle the Ctrl-C to not terminate the shell * Handling the command seperator `;` * Handling `&&` and `||` logical operators * Handle variable replacements `$?` and `$$` * Handle the comments `#` * Support the history feature * Support the file input ## Builtins Our shell has support for the following built-in commands: | Command | Definition | | ------------------- | ----------------------------------------------------------------------------------------- | | exit [n] | Exit the shell, with an optional exit status, n. | | env | Print the environment. | | setenv [var][value] | Set an environment variable and value. If the variable exists, the value will be updated. | | alias[name[='value]]| Reads aliases name | | unsetenv [var] | Remove an environment variable. | | cd [dir] | Change the directory. | | help [built-in] | Read documentation for a built-in. | ## Installation : Getting HSH Clone the below repository and compile the files into an executable using the GCC compiler. ``` https://github.com/StellahMbao/simple_shell.git ``` ### Basic usage :bulb: - First, Fork this Repository [Learn how to fork repo](https://docs.github.com/en/github/getting-started-with-github/fork-a-repo). - Then Clone [Learn how to clone ](https://docs.github.com/en/github/creating-cloning-and-archiving-repositories/cloning-a-repository). - Create an executable by running the following command: - `gcc -Wall -Werror -Wextra -pedantic *.c -o hsh` - From there, type in the following command and press your enter button. - `./hsh` - Final step: ENJOY! ## Example :computer: ``` ls -la ```  ## Contributors : * [**Reny Kipkoech**](https://github.com/Tr-reny) * [**Stellah Mbao**](https://github.com/StellahMbao) ## Acknowledgments : - The creators of the C language. - Our software engineer-in-residence. - Betty Holberton | Alx-Africa .
