Declare an array of shortcodes and replacement values, iterate over each and search and replace all instances in the DB.

replace-shortcodes-with-html.sh

declare -A array=([x-large]='h1' [large]='h2' [medium]='h3' [small]='h4' [x-small]='h5' [xx-smal]='h6');
for key in ${!array[@]};do
	printf "Start [$key] Search\n";
	wp search-replace "[$key]" "<${array[$key]} class='headline headline--slab headline-get-page-color'>"  --all-tables --precise --recurse-objects --format=count;
	printf "Start [/$key] Search\n";
	wp search-replace "[/$key]" "</${array[$key]}>"  --all-tables --precise --recurse-objects --format=count;
	printf "Next Search\n";
done;