Create a new database or copy an existing database

//  sudo -u postgres psql -c 'create database test;'
//   'grant all privileges on database test to username;
//
// to copy a database in to another database;
//  1. close any open applications on the source database
//  2. execute the following as 'root' user;
//     a. serveradmin@lsus1:projects/warehouse$ sudo -u postgres psql
//     b. [sudo] password for serveradmin:
//     c. psql (9.5.19)
//     d. Type "help" for help.
//     e. postgres=# create database warehouse_1 with template warehouse;
//
//     this will copy in its entirety with all permissions the source database
//      to the destination database.
//