WP-CLI: Every action, scriptable.
The command line for WordPress. No browser required.

Scriptable by design
Anything you can do in the WordPress admin, you can do from the terminal. Install and update plugins, import content, create users, run search-replace across a database, rotate keys, manage multisite networks. Bundle any of it into a script, a cron job, or a deploy step. WP-CLI turns WordPress into something you can automate.

wp plugin
Install, activate, update

wp theme
Manage themes and child themes

wp db
Export, import, search-replace

wp user
Create, update, reset passwords

wp post
Bulk create, edit, delete content

wp core
Install, update, verify WordPress

wp site
Manage multisite networks

wp cron
Inspect and run scheduled events
Automate anything
WP-CLI fits wherever you script. Bake it into a deploy pipeline to migrate a database between environments. Wire it into a GitHub Action to verify core integrity on every pull request. Run it from cron to rotate keys, prune transients, or regenerate thumbnails at 3 a.m.
wp db export backup.sql
wp search-replace 'https://staging.example.com' 'https://example.com' --all-tables
wp cache flush