Linux: Jpeg Image Optimization / Compress Command

There are several tools available for optimizing and compressing JPEG images in Linux. Here are some options:

1. jpegoptim: This is a command-line tool that allows you to optimize JPEG images by removing unnecessary metadata and optimizing the image data. To install jpegoptim on a Debian-based system (such as Ubuntu), run the following command:

sudo apt-get install jpegoptim

To optimize a JPEG image using jpegoptim, run the following command:

jpegoptim IMAGE_FILE

Replace "IMAGE_FILE" with the path to the JPEG image that you want to optimize. By default, jpegoptim will try to optimize the image as much as possible while preserving the quality.

2. guetzli: This is a tool developed by Google that uses a different optimization algorithm than jpegoptim. It is designed to produce smaller files with minimal loss in quality. To install guetzli, you need to download the source code and build it. Follow the instructions on the guetzli GitHub page (https://github.com/google/guetzli) to install it.

To optimize a JPEG image using guetzli, run the following command:

guetzli IMAGE_FILE COMPRESSED_IMAGE_FILE

Replace "IMAGE_FILE" with the path to the JPEG image that you want to optimize, and "COMPRESSED_IMAGE_FILE" with the path to the output file.

3. optipng: This is a tool for optimizing PNG images, but it can also be used to optimize JPEG images. To install optipng on a Debian-based system, run the following command:

sudo apt-get install optipng

To optimize a JPEG image using optipng, run the following command:

optipng -o7 -strip all IMAGE_FILE

Replace "IMAGE_FILE" with the path to the JPEG image that you want to optimize. The "-o7" option specifies the optimization level (the higher the level, the more optimization is applied), and the "-strip all" option removes all metadata from the image.

Note: These tools will optimize the JPEG image and reduce its file size, but they may also introduce some loss in quality.