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Image Optimizer Script

Description

The imageOptimizer.sh script optimizes image files in a specified directory using various tools. It supports PNG, JPEG, and other formats, and can display a progress bar and control sleep duration between optimizations to reduce CPU load. This script helps reduce image file sizes, improving website performance and reducing bandwidth usage.

Prerequisites

Ensure the following tools are installed:

  • pngquant
  • optipng
  • jpegoptim
  • optimizt

Install them using these commands:

On Debian/Ubuntu:

sudo apt-get install pngquant optipng jpegoptim
npm install -g optimizt

On CentOS/RHEL/Almalinux:

sudo yum install pngquant optipng jpegoptim
npm install -g optimizt

Cloning the Repository

Clone the repository from GitHub:

git clone https://github.com/machadoug/IdealImageOptimizer.git
cd IdealImageOptimizer

Usage

Run the script with:

bash imageOptimizer.sh /path/to/directory

Options:

  • --verbose: Display a progress bar with time estimation.
  • --sleep <duration>: Set sleep duration between optimizations (default is 0.75 seconds).

Example:

bash imageOptimizer.sh --verbose --sleep 2 /path/to/directory

Script Details

Default Values

  • DIR=".": Directory to optimize images in (default is the current directory).
  • VERBOSE=false: Display a progress bar (default is false).
  • SLEEP_DURATION=0.75: Sleep duration between optimizations (default is 0.75 seconds).

Log Files

  • imageOptimization.log: Tracks processed files to avoid reprocessing.
  • imageOptimization_errors.log: Logs errors encountered during optimization.

License

This script is provided as-is without any warranty. Use at your own risk. See LICENSE for details. This project is licensed under the Apache 2.0 License.

Attribution

See the NOTICE file for attribution of third-party components and IdealExtensions.com.