$.$ Press Esc to switch to command mode. Next press the Shift and ; keys

simultaneously to open the : prompt at the bottom of the screen. At this prompt,

type w and press Enter to save the changes you have made to the file.

a$.$ What is displayed at the bottom of the file when you are finished?

i$.$ ENTER YOUR ANSWER ON THE PROVIDED ANSWER SHEET

$16.$ Press the Shift and ; keys simultaneously to open the : prompt at the bottom of the

screen again, type q$,$ and then press Enter to exit the vi editor.

$17.$ At the command prompt, type ls and press Enter to view the contents of your current

directory. Notice that there is now a file called sample$1$ listed.

$18.$ Next, type file sample$1$ and press Enter.

a$.$ What type of file is sample$1?$

i$.$ ENTER YOUR ANSWER ON THE PROVIDED ANSWER SHEET

$19.$ At the command prompt, type cat sample$1$ and press Enter.

$20.$ At the command prompt, type vi sample$1$ and press Enter to open the letter again

in the vi editor.

a$.$ What is displayed at the bottom of the screen?

i$.$ ENTER YOUR ANSWER ON THE PROVIDED ANSWER SHEET

b$.$ How does this compare with Step $15?$

i$.$ ENTER YOUR ANSWER ON THE PROVIDED ANSWER SHEET

$21.$ Use the cursor keys to navigate to the bottom of the document $($you may already be

there$).$ Press the Shift and ; keys simultaneously to open the : prompt at the bottom

of the screen again, type $!$date and press Enter. The current system date and time