Project $3-5$

ESTIMATED TIME: $50$ minutes

OBJECTIVE: Use the vi editor.

DESCRIPTION: In this hands$-$on project, you create and edit text files using the vi editor$\mathrm{.}20.$ Press the Shift and ; keys together to open the : prompt at the bottom of the screen, type w sample$2$ and press Enter. What happened?

$21$

Press i to enter insert mode, and type the word test $.$ Next, press Esc to switch to command mode. Press the Shift and ; keys together to open the : prompt at the bottom of the screen, type q $,$ and press Enter to quit the vi editor. Were you able to quit? Why not?

$22$

Press the Shift and ; keys together to open the : prompt at the bottom of the screen, type q$!,$ and press Enter to quit the vi editor and discard any changes since the last save.

$23$

At the command prompt, type ls and press Enter to view the contents of your current directory. Notice it now includes a file called sample$2,$ which was created in Step $20.$ Type diff sample$1$ sample$2$ and press Enter to view the difference in content between the two files you created.

$24$

At the command prompt, type vi sample$2$ and press Enter to open the letter again in the vi editor.

$25$

Use the cursor keys to position your cursor on the line that reads Hi Bob, I hope this day finds you well.

$26$

Press the Shift and ; keys together to open the : prompt at the bottom of the screen, type s$/$Bob$/$Barb$/$g $,$ and press Enter to change all occurrences of $$Bob$$ to $$Barb$$ on the current line.

$27$

Press the Shift and ; keys together to open the : prompt at the bottom of the screen, type $1,$$ s$/$to$/$TO$/$g $,$ and press Enter to change all occurrences of the word $$to$$ to $$TO$$ for the entire file.

$28$

Press the u key. What happened?