In this project, you gain further experience in writing a very simple shell script using...

In this project, you gain further experience in writing a very simple shell script using sequential logic. In these steps, you create the shell script, seqtotal.

To demonstrate sequential logic:

1. Type vi seqtotal and press Enter.

2. Type i to switch to vi’s insert mode.

3. Type the following lines:

let a=1

let b=2

let c=3

let total=a+b+c

echo $total

4. Press Esc to switch to vi’s command mode.

5. Type :x and press Enter to save the file and exit vi.

6. Next test the new shell script, seqtotal. (To save a few keystrokes, use the sh command instead of the chmod command.) Type sh seqtotal and press Enter.

You see the output of the script, which is 6.