PART $4$: Learn about commands used to view the contents of files.

Use the cat command to review the contents of the ~$/$test$2/$passwd$.$bak

Take a screenshot $($filename: screenshot$\_4)$ of the above activity.

Clear the shell with the clear command.

Resize your terminal window to make it half of the height that it was before by dragging the bottom of the window up$.$

Now try step $1$ again, but use the less command instead of cat. $($Use the up and down arrow keys to scroll through the file, type in q$,$ to exit less.$)$

Return your terminal window to its previous height by dragging the bottom of the window down.

Now try step $1$ again, but use the head command instead of cat.

Now try step $1$ again, but use the tail command instead of cat.

Try steps $7$ and $8$ again, but add the $-$n$2$ option$/$flag to the head and tail commands and see what happens.

Type cat $>$ file$1$ and enter a single sentence about how you feel about Linux. Hit Enter and then type CTRL $+$ d to exit.

Type cat file$1$ to view its contents.

Create another file with this command ls $-$la ~ $>$ file$50$

Append to the end of file$50$ the contents of ~$/$test$2/$passwd$.$bak using this command cat ~$/$test$2/$passwd$.$bak $>>$ file$50$

Review the final contents of file$50$ your work using the less command. You should remember how to exit less.

Search file$50$ for any lines with the word root by using this command: grep root file$50$

Take a screenshot $($filename: screenshot$\_5)$ of the above activities.

Clear the shell with the clear command.