lorem_posts.sh

#!/bin/bash

# Number of posts to create
posts=100

# Paragraphs
p=2

# Create new posts and pages with random Lorem ipsum content inside paragraph blocks
curl -N http://loripsum.net/api/$p | sed '/^$/d' | sed 's/^/<\!-- wp:paragraph -->/' | sed 's/$/<\!-- \/wp:paragraph -->/' | wp post generate --count=$posts --post_content

Note that this is 'block friendly'. Which means that not only does it create posts with random sample Lorem Ipsum text, it also adds each paragraph fetched from the Lorem API to a Gutenberg paragraph block.

Otherwise, when you viewed each post the Lorem text is just added to a 'Classic' block which isn't what we want.

Result for each post is something like this.