file-manager

Operating System Course Project

Made by group of 3 people

This project implements various file manipulation and encryption/decryption functionalities using multithreading and synchronization mechanisms in C. Below is an overview of the project and instructions on how to use it.

Overview

The project consists of several functionalities implemented through command-line commands:

• File Management: Creating, deleting, and renaming files within a specified directory.
• Encryption: Encrypting files using a simple XOR encryption method and storing hash values.
• Decryption: Decrypting previously encrypted files and retrieving stored hash values.
• Sorting: Sorting files alphabetically within a directory.
• Keyword Indexing: Creating an index of keywords found in text files and allowing searching through them.

Requirements

To compile and run this project, ensure you have the following installed:

• GCC: The GNU Compiler Collection for compiling C programs.
• Linux Environment: This project assumes a Linux environment due to the use of system-specific libraries and commands (pthread, semaphore, mmap, etc.).

Commands and Usage

Compilation

Compile the project using GCC:

gcc project.c -o project -pthread

Commands

The project supports the following commands:

• Create File: -c <directory> - Creates a new file in the specified directory.
• Delete File: -del <directory> - Deletes a file in the specified directory.
• Rename File: -r <directory> - Renames a file in the specified directory.
• Encryption: -e <directory> - Encrypts a file using XOR encryption and stores hash values.
• Decryption: -d <directory> - Decrypts a previously encrypted file and retrieves stored hash values.
• Sorting: -s <directory> - Sorts files alphabetically within the specified directory.
• Keyword Indexing: -p <directory> - Creates an index of keywords found in text files and allows searching.

Examples

Compile the project:

gcc project.c -o project -pthread

Create a new file:

./project -c /path/to/directory

Encrypt a file:

./project -e /path/to/file.txt

Decrypt a file:

./project -d /path/to/encrypted_file.txt

Sort files alphabetically:

./project -s /path/to/directory

Create a keyword index:

./project -p /path/to/directory

Notes

• Concurrency: The project utilizes multithreading (pthread) and synchronization (mutex, semaphore) for concurrent operations.
• Error Handling: Error messages are displayed for file operations and encryption/decryption failures.
• Compatibility: Ensure you are running this project on a Linux system due to system-specific commands and libraries used.

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