1. Connecting the server using SSH
Please refer to our support document: 3. Connecting to AMIMOTO-AMI with SSH
2. Navigating to WordPress install directory
$ cd ~/www/example.com/
or
$ cd /var/www/vhosts/example.com/
Replace example.com with your real domain name
3. Export database of WordPress to the current directory
$ wp db export
4. Move exported data to your home directory or somewhere
$ mv example_com.sql ~/example_com.sql
Refer to the WordPress developer guide for more details about the wp-cli command.