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Useful-Shell-Scripts

Useful-Shell-Scripts

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Useful-Shell-Scripts


A collection of handy shell scripts for automating tasks on macOS and Linux.

📜 Available Scripts

1️⃣ Remove GPS EXIF Data from Photos (remove_gps_exif.sh)

This script removes GPS location metadata from image files to protect privacy.

📥 Installation

Ensure you have exiftool installed:
sh
brew install exiftool # macOS (Homebrew)
sudo apt install libimage-exiftool-perl # Ubuntu/Debian

🚀 Usage

Run the script with a file or directory as an argument:
sh
./remove_gps_exif.sh path/to/photo.jpg

To process all images in a folder:
sh
./remove_gps_exif.sh path/to/folder

⚙️ Features

Removes GPS metadata (-gps:all=)
Works on single files or entire directories
Overwrites original files to prevent data leaks

2️⃣ Compress and Resize Images (compress_resize_images.sh)

This script compresses and resizes images using ImageMagick.

📥 Installation

Ensure you have ImageMagick installed:
sh
brew install imagemagick # macOS (Homebrew)
sudo apt install imagemagick # Ubuntu/Debian

🚀 Usage

Run the script with a file or directory as an argument

Compress and resize a single image to 800x600 with 80% quality:
sh
./compress_resize_images.sh image.jpg 800x600 80

Process all images in a folder with default quality (85%):
sh
./compress_resize_images.sh /path/to/folder 1024x768

⚙️ Features

Supports JPG, JPEG, and PNG formats
Allows setting max width and height (800x600 format)
Adjustable compression quality (default: 85%)
Processes single files or entire directories

3️⃣ Transcode FLAC to MP3 (flac_to_mp3.sh)

This script converts FLAC audio files to MP3 format using ffmpeg.

📥 Installation

Ensure you have ffmpeg installed:
sh
brew install ffmpeg # macOS (Homebrew)
sudo apt install ffmpeg # Ubuntu/Debian

🚀 Usage

Run the script with a file or directory as an argument

Convert a single FLAC file to MP3 (default 320kbps):
sh
./flac_to_mp3.sh song.flac

Convert all FLAC files in a directory at 192kbps:
sh
./flac_to_mp3.sh /path/to/folder 192k

⚙️ Features

Supports batch conversion for directories
Retains metadata from the original FLAC file
Allows customizable bitrate (default: 320kbps)
Outputs MP3 files in the same directory as the source FLAC files

4️⃣ Disk Space Checker for macOS

This is a simple shell script designed for macOS to monitor available disk space on your main volume (/) and provide a visual alert if it falls below a customizable threshold.

📥 Installation

Download the Script:

Make It Executable:

Run the following command in your Terminal to make the script executable:
bash
chmod +x disk_space_checker.sh

Optional: Move to a Bin Directory. For easy access, move it to a directory in your $PATH, like /usr/local/bin:
bash
mv disk_space_checker.sh /usr/local/bin/disk_space_checker

Now you can run it from anywhere by typing disk_space_checker.

🚀 Usage

Run the Script:
Execute the script from its location:
bash
Wrap
Copy
./disk_space_checker.sh
Or, if you moved it to a bin directory:
bash
Wrap
Copy
disk_space_checker

Example Output:

When disk space is sufficient:
text
Disk space looks good!
45 GB available out of 250 GB.
Usage: [========= ] 18%

When disk space is low:
text
WARNING: Low disk space!
8 GB available out of 250 GB.
Consider freeing up some space.
Usage: [= ] 3%

Customize the Threshold:

Open the script in a text editor (e.g., nano disk_space_checker.sh).

Adjust the THRESHOLD variable (default is 10 GB):
bash
THRESHOLD=20 # Change to 20 GB

⚙️ Features

  • Color-Coded Alerts: Green for sufficient space, red and yellow for low space warnings.
  • Customizable Threshold: Set your own low-space limit by editing the THRESHOLD variable.
  • Visual Progress Bar: Displays a simple bar showing the percentage of used disk space.
  • Error Handling: Checks for valid disk space data and exits gracefully if retrieval fails.
  • Lightweight: No dependencies beyond standard macOS tools (df, bash).

Contributions

  • Contributions are welcome!

License

  • Distributed under the GNU Affero General Public License v3.0 License. See LICENSE for more information.