large-images-drush: A PHP repository from agileadam

Introduction

This provides two drush commands.

large-images-list will list the largest images (by file size) found in a directory (and its subdirectories by default)
large-images-compress will compress (shrink file size of) images and update the associated record in Drupal's file_managed table

Both of these commands require you to specify the directory to search, and the minimum size you'd like to operate on.
Both of these commands also allow you to specify a maxdepth.
The compression command takes an additional (required) "quality" argument. This can be anything from 1 to 100 (lowest output quality to highest output quality). For general use the recommended value is somewhere around 80 or 90.
Run either command with --help to see all options. For example: drush large-images-list --help

Run large-images-list before running large-images-compress
Use the --backup option to automatically create originalfile.jpg_lgbak files
These commands work fine in the environments where I've used them. This does not mean they'll work perfectly for you! Test before using!
I recommend you back up your Drupal database and whatever directory you're operating on before executing large-images-compress
large-images-compress is not a "smart" command. It simply overwrites the image with the desired output quality and updates the database. It does not look at the current compression level before attempting to generate the new version, though I may add this functionality to prevent trying to go from a lower quality to a higher one.

Drupal 7 site
drush
php with gd library
find command
du command
sort command (some systems may be missing the -h option; you may remove this h option in the code without affecting the functionality)
cut command