A sample WP-CLI script to setup a new site with some defaults of our choosing.

wp-cli_site-setup.sh

#!/bin/zsh

# delete the default plugins and themes that we don't need
wp plugin delete hello
wp theme delete twentyfifteen
wp theme delete twentysixteen

# install the themes and plugins that we do want
wp plugin install gutenberg --activate
wp plugin activate akismet

# delete sample post
wp post delete "$(wp post list --post_type=post --posts_per_page=1 --post_status=publish --postname="hello-world" --field=ID --format=ids)" --force

# delete sample page, and create homepage
wp post delete "$(wp post list --post_type=page --posts_per_page=1 --post_status=publish --pagename="sample-page" --field=ID --format=ids)" --force

# Add a comma separated list of pages
allpages="Home,About,Contact,Blog"
# create all of the pages
IFS=","
for page in $allpages
do
  wp post create --post_type=page --post_status=publish --post_author="$(wp user get $wpuser --field=ID)" --post_title="$(echo $page | sed -e 's/^ *//' -e 's/ *$//')"
done

# set page as front page
wp option update show_on_front 'page'

# set "Home" to be the new page
wp option update page_on_front "$(wp post list --post_type=page --post_status=publish --posts_per_page=1 --pagename=home --field=ID)"

# set "Blog" to be the new blogpage
wp option update page_for_posts "$(wp post list --post_type=page --post_status=publish --posts_per_page=1 --pagename=blog --field=ID)"

# Create a navigation bar
wp menu create "Main\ Navigation"

# Add pages to navigation
IFS=" "
for pageid in $(wp post list --order="ASC" --orderby="date" --post_type=page --post_status=publish --posts_per_page=-1 --field=ID --format=ids);
do
  wp menu item add-post main-navigation "$pageid"
done

# Assign navigation to primary location
wp menu location assign main-navigation primary

# Remove default widgets from sidebar
widgetids=$(wp widget list sidebar-1 --format=ids)
wp widget delete $widgetids

# Create a category called "News" and set it as default
wp term create category News
wp option update default_category "$(wp term list category --name=news --field=id)"


# update and add general options
wp option update date_format 'j F Y'
wp option update links_updated_date_format 'F j, Y g:i a'
wp option update timezone_string 'America/New_York'
wp option update permalink_structure '/%postname%/'