https://github.com/mahmudhmh/shellscript-dbms

The goal of this project is to develop a simple Database Management System (DBMS) using a Bash shell script.
https://github.com/mahmudhmh/shellscript-dbms

awk bash-script cli dbms redhat sed shell-script

Last synced: 4 months ago
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The goal of this project is to develop a simple Database Management System (DBMS) using a Bash shell script.

• Host: GitHub
• URL: https://github.com/mahmudhmh/shellscript-dbms
• Owner: mahmudhmh
• Created: 2023-12-22T10:03:51.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-12-22T15:46:27.000Z (over 1 year ago)
• Last Synced: 2025-01-12T21:32:01.152Z (6 months ago)
• Topics: awk, bash-script, cli, dbms, redhat, sed, shell-script
• Language: Shell
• Homepage:
• Size: 10.7 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Bash Shell Script Database Management System (DBMS)

![MainMenu](https://github.com/mahmudhmh/ShellScript-DBMS/assets/54104161/ef1e390e-513a-48aa-838b-602c1b542915)

## Project Overview:

The goal of this project is to develop a simple Database Management System (DBMS) using a Bash shell script. The system allows users to store and retrieve data from the hard disk through a Command Line Interface (CLI) menu.

## Project Features:

### Main Menu:

1. **Create Database:**

   - Allows users to create a new database, which will be stored as a directory next to the script file.

2. **List Databases:**

   - Displays a list of existing databases.

3. **Connect To Database:**

   - Allows users to connect to a specific database, leading to a new screen with additional menu options.

4. **Drop Database:**

   - Permits users to delete a database along with its contents.

### Database Menu:

1. **Create Table:**

   - Enables users to define a new table within the connected database, specifying column names and data types.

2. **List Tables:**

   - Displays a list of tables in the connected database.

3. **Drop Table:**

   - Allows users to remove a table and its data from the connected database.

4. **Insert into Table:**

   - Facilitates the insertion of new records into a specified table, validating data types and checking for primary key constraints.

5. **Select From Table:**

   - Retrieves and displays rows from a specified table in an accepted/good format.

6. **Delete From Table:**

   - Permits users to delete specific rows from a table based on specified conditions.

7. **Update Table:**

   - Allows users to update existing records in a table, checking for valid data types and primary key constraints.

## Implementation Details:

- **Database Storage:**

  - Databases are stored as directories adjacent to the script file.

- **Column Datatypes:**

  - Users are prompted for column data types during table creation and validated during data insertion and updating.

- **Primary Key:**

  - Users are prompted to define a primary key during table creation, and the system enforces this constraint during data insertion.

## Bonus Features:

- **GUI Integration:**

  - A graphical user interface (GUI) could be implemented as an alternative to the menu-based CLI, providing a more user-friendly experience.

## How to Run the Script:

1. **Ensure Bash is Installed:**

   - Make sure that Bash is installed on your system.

2. **Execute the Script:**

   - Run the script using the command: `./main.sh`

3. **Follow On-Screen Instructions:**

   - Follow the on-screen menu instructions to interact with the DBMS.

4. **Explore Database Operations:**

   - Create, connect, and manipulate databases and tables as needed.

## Contributors:

- [Mahmoud Hussien Mahmoud](https://www.github.com/mahmudhmh)

## License:

This project is licensed under the [Open Software License 3.0].