CPanel Scripts

cPanel has a bunch of scripts in the /scripts folder.

For most of them, you can run: /scripts/script_name_here --help to see what the script does. (Except for upcp... --help is not available for it.)

Scripts

/scripts/whowns domain.com - Tells you which cPanel account owns the specified domain.

/scripts/upcp --force - Updates cPanel (use with caution)

/scripts/pkgacct user - backs up the entire specified cPanel account, including databases, e-mail, settings, etc. Replace "user" with the cPanel username to backup.

/usr/local/cpanel/bin/checkallsslcerts - Checks All SSL certificates.

/usr/local/cpanel/bin/autossl_check --user $usernamehere - force Auto-SSL to check a specific account

Mail sizes showing incorrectly? Try this:
/scripts/generate_maildirsize --confirm --allaccounts --verbose $USER

Check RPMs and possibly re-install:
/scripts/check_cpanel_rpms

Database Grants
Weird database permission/authentication issues? Try restoring the database grants:
/usr/local/cpanel/bin/restoregrants --cpuser=$cpuser --db=mysql --all