Resize all category images with command?

[aria_asgari]

Hi All!

We migrated from magento 1 to 2, and with this move we are trying to repair some of the bugs that we have gone with in magento 1. 

So basically our category images are different sizes, but they are presented as 100x100. I am thinking this is not optimal, and I would like to resize all images for each category to 100x100. 

Do I have to do it manually 1 by 1 or is there perhaps an easier way?

[Sanjay Jethva]

@aria_asgari 

Please pass this command:

php -d memory_limit=-1 bin/magento catalog:images:resize