README

Fun With Bash

"Fun With Bash" is a versatile script developed to handle different tasks. This script presents an interactive dialog-based interface using YAD that lets you access the date and time, a calendar, delete a file or directory, shows the system information, browse the web, play games, perform Git operations, and extract audio from video files or YouTube URLs.

Features

The software offers the following functionalities:

1. Date/Time: Displays the current date and time.
2. Calendar: Allows you to view and manage events in a calendar.
3. File management: Provides options to manage files.
4. System Info: Retrieves system information such as the operating system type, CPU info, memory info, hard disk info, and file system info.
5. Play a game: Offers a selection of games to play.
6. Browse the web: Allows you to enter a keyword or a URL to open in your default web browser.
7. Git Options: Provides Git-related functionalities such as initializing a repository, pulling, pushing, checking status, adding files, committing, and cloning.
8. Convert MP4 to Audio: Enables extraction of audio from local video files or YouTube URLs.
9. Exit: Terminates the software.

Dependencies

• Bash: The scripts are written in Bash.
• Yad: Yad (Yet Another Dialog) is a tool for creating graphical dialogs from shell scripts. Install it using the command: sudo apt-get install yad
• Emacs: The games are played through Emacs. Install it using the command: sudo apt-get install emacs
• xfce4-terminal: The terminal emulator used to run the Emacs games. It is usually pre-installed in Ubuntu. Install it using the command: sudo apt-get install xfce4-terminal
• xdg-utils: A set of tools for desktop environment interoperability, used here for web browsing. Install it using the command: sudo apt-get install xdg-utils

Installation

1. Make sure the bash files (main.sh, sys_info.sh, extract_audio.sh, git_options.sh) and the games (guess_the_num.exe, tic_tac_toe.exe) are executable. If not, use the following command to make them executable:

   chmod +x main.sh sys_info.sh extract_audio.sh git_options.sh guess_the_num.exe tic_tac_toe.exe

Usage

To use the "Fun With Bash" software, navigate to the directory containing the main.sh script and run:

./main.sh

The software will present a list of options. Select an option to proceed.

If you choose to play a game, a list of games will appear. Choose a game to play.

Emacs games (Dunnet, Tetris, Snake, Gomoku) will start in a new terminal window. Close the terminal window to end the game.

Guess The Number and Tic-Tac-Toe games run directly in the terminal from where the script was initiated. Follow the on-screen prompts to play the games.

Functions

main.sh

This script includes the following functions:

• date_time: Displays the current date and time using the yad tool in a dialog box.
• calendar: Displays a calendar using the yad tool, allowing you to select a date and view events.
• delete_item: Deletes files and directories, with confirmation prompts and checks for system directories.
• file_management: Allows you to explore directories and delete files and directories.
• sys_info: Runs the sys_info.sh script to display system information.
• games: Allows you to play different games, including Emacs games and C-based games.
• browse_web: Opens a web browser with a provided URL or performs a web search with a keyword.
• git_options: Provides various Git-related functionalities using the git_options.sh script.
• convert_audio: Allows you to extract audio from a local video file or a YouTube URL using the extract_audio.sh script.
• quit: Terminates the script.

sys_info.sh

This script includes a loop that offers a list of system info options:

• Operating System Type
• CPU Info
• Memory Info
• Hard Disk Info
• File System Info

Based on the user's selection, the corresponding information is displayed in a dialog box.

extract_audio.sh

This script allows you to extract audio from a local video file or a YouTube URL. It provides options to choose a local video file or enter a YouTube URL. The audio is extracted and saved in AAC format.

git_options.sh

This script provides various Git-related functionalities. It allows you to initialize a Git repository, pull changes from a remote repository, push changes to a remote repository, check the status of a repository, add files to the repository, commit changes, and clone a remote repository.

YAD & Syntax Explanation

YAD

YAD (Yet Another Dialog) is a tool for creating graphical dialogs from shell scripts. It is a fork of Zenity dialog with more features and improvements. In the "Fun With Bash" scripts, yad is used for displaying dialog boxes for various functions.

Yad commands:

• yad --info: Displays an information dialog box.
• yad --calendar: Creates a calendar dialog.
• yad --list: Generates a list dialog.
• yad --radiolist: Creates a list of radio buttons.
• yad --entry: Creates an entry dialog box.
• yad --question: Generates a question dialog box.
• yad --width and yad --height: Used to specify the width and height of the dialog box.
• yad --fontname: Used to set the font of the dialog box.
• yad --center: Centers the dialog box on the screen.
• yad --print-column: Prints the specified column when an item is selected.
• yad --separator: Sets the output field separator.

Syntax Explanation

• [[ ... ]] vs [ ... ]: Both are used for conditional expressions, but [[ ... ]] is more modern and recommended as it has more functionality.
• $() vs ` `: Both are used for command substitution, but $() is more modern and recommended.
• xdg-open command: Opens a file or URL in the user's preferred application.
• Function declaration in Bash: Functions are declared using the syntax function_name () { commands; }.
• Subshell: A separate instance of the bash shell that's started to execute a script or a command. In the "Fun With Bash" script, we run Emacs games in a new terminal using the command xfce4-terminal -e "command".