https://github.com/sidd-77/cpp-sh
Shell written in C++ from scratch
https://github.com/sidd-77/cpp-sh
cpp shell
Last synced: 3 months ago
JSON representation
Shell written in C++ from scratch
- Host: GitHub
- URL: https://github.com/sidd-77/cpp-sh
- Owner: Sidd-77
- Created: 2025-01-20T14:04:34.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2025-01-20T14:57:05.000Z (over 1 year ago)
- Last Synced: 2025-01-20T15:25:39.953Z (over 1 year ago)
- Topics: cpp, shell
- Language: C++
- Homepage:
- Size: 47.9 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Shell in C++
## Overview
This is a simple shell written in C++ from scratch. It supports various shell-like features including command execution, piping, background processes, and I/O redirection.
## Features
- **Execute Commands**: Run standard system commands.
- **Change Directory (`cd`)**: Navigate between directories.
- **Help Command (`help`)**: Display available commands.
- **Background Execution (`&`)**: Run processes in the background.
- **Check Background Processes (`checkbg`)**: View running background jobs.
- **Piping (`|`)**: Connect commands using pipes.
- **I/O Redirection (`>` and `>>`)**: Redirect command output to files.
## Installation & Compilation
### Prerequisites
- C++ Compiler (G++ recommended)
- Make (for compilation automation)
### Build Instructions
To compile the shell, use the provided **Makefile**:
```sh
make
```
This generates the executable `shell`.
### Running the Shell
After compilation, run the shell with:
```sh
./shell
```
### Cleaning Up
To remove compiled files, run:
```sh
make clean
```
## Usage
### Running Commands
You can run any system command just like in a normal shell:
```sh
ls
pwd
echo "Hello, World!"
```
### Changing Directories
```sh
cd
```
Example:
```sh
cd /home/user
```
### Background Execution
Run a command in the background by appending `&`:
```sh
top &
```
Use `checkbg` to view background processes:
```sh
checkbg
```
### Piping Commands
Use `|` to pass the output of one command as input to another:
```sh
ls | grep .cpp
```
### I/O Redirection
- Overwrite file output:
```sh
echo "Hello" > file.txt
```
- Append to a file:
```sh
echo "Hello Again" >> file.txt
```
### Display Help
Run:
```sh
help
```