Shell Implementation in C++

Shubh Maheshwari

Pratik Kamble

Introduction

• This is a basic shell implemented using syscalls and C++ STL templates.
• C/C++ provides headers such as unistd, pwd.h, sys/types.h, etc to make system calls and other process calling much easier.

How to Run

• First, make sure you have make installed.
  • sudo apt-get install make
• Clone this repo to your computer git clone https://github.com/Pk13055/cpp-shell.git
• cd cpp-shell
• make
• Now, provided your make succeeds, you will have a file shkell in this folder.
• Finally, run ./shkell

How to Contribute

• When adding a new feature/method, make sure you follow the following steps.

  • (optional) Define a new header file if it is a completely new feature.
  • The header file(s) should only have class and function definitions.
  • Variables can be included but should be of the form extern ....
  • Now, make a *.cpp file, and #include<yourheader> in that file. Here, the class and function definitions can be written. Additionaly, any variables declared in the header file must be declared here again sans extern.
  • At the end now, include your header file in the main.cpp as #include "yourheader".

• Open a pull request describing your feature addition.

Dependencies

Most systems come installed with `libreadline`, a package used for the autocompletion and other facilities. Install the following incase you're presented with an error
` sudo apt-get install libreadline6 libreadline6-dev`