PostgreSQL and Shell Script Exercise - Basic Levels

#PostgreSQL Level: basic
#ShellScript Level: basic
Timestamps
00:00:00 Introduction
00:00:49 Modify PATH environment variable to point to PostgreSQL
00:01:08 The easy Linux exercise with for (prerequisites)
00:02:31 Initiate the PostgreSQL cluster (initdb)
00:03:37 Change the port to its default value before starting the PostgreSQL cluster
00:04:04 Start the PostgreSQL server
00:04:50 Create a databse dbtest and an empty table to populate
00:07:00 Write/Test a shell script to populate the table
00:11:00 Enhance the shell script with PostgreSQL environment variables