WP-CLI is WordPress's command-line interface — it lets you manage every aspect of a WordPress installation from an SSH terminal, faster and safer than the admin panel for bulk operations, migrations, and emergency recovery. It is the single most useful tool a WordPress site owner can install on their server.
📌 Plugin crashes the admin panel — disable the plugin from terminal without needing to log in.
📌 Bulk update 100+ posts — one WP-CLI command beats clicking through 10 admin pages.
📌 Hacked admin account — reset password or create a new admin user without needing the current password.
📌 Migrate between servers — export database and search-replace old URL to new URL in one step.
📌 Verify core file integrity — wp core verify-checksums tells you if any WordPress core file has been modified by malware.
WordPress CLI (WP-CLI) Command Toolkit — https://ordinarymantrying.com/tools/toolkit/toolkit-wp-cli.html