For consistency suggest to replace these backticks and those in chapter 2.2 with $() And using $() is easier to see. https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/13/html/fast_forward_upgrades/assembly-preparing_for_openstack-platform_upgrade#annotations:dc07faca-7785-432a-b8b3-9cffe375aa04
Completely agree. Both do the same thing, but backticks are deprecated in favor of $() due to the fact that you can nest $() inside of $().