PART 1: Explore scripting with some of the concepts from Chapter 8

• Explore variables using the env and the set commands.
• Create a new variable named hrs_worked. Assign hrs_worked a value of 20.
• Create a new variable named hrly_rate. Assign hrly_rate a value of 38.
• Create another variable named pay and assign it the value of hrs_worked times hrly_rate.
• export all 3 variables.
• Set hrly_rate to readonly. Try to unset hrly_rate.
• Use the echo command to see the values of all 3 variables.
• TO HAND IN: Take a screen shot of these commands for PART 1.