Part $2$: Backing Up Files

For this part, write a shell script named backup$-$home that creates a new directory $/$var$/$backup$,$ then backs up all files in all users' home directories to a file located at $/$var$/$backup$/$home$.$tar.bz$2$ in compressed form.$$

This is fairly easy to do when you know that $(1)$ all non$-$root users' home directories are nested inside the directory $/$home and $(2)$ the tar command automatically makes copies of all files in a given directory and its subdirectories.

You will need to use the bzip$2$ compression program from Linux Assignment $8$ and$$LBFH chapter $9.$ Remember to use the $-$f or $--$file option on the tar command to set the backup file's name.

$$

Test your script by running

sudo $./$backup$-$home

from anywhere on your system. Then use

sudo tar tjf $/$var$/$backup$/$home$.$tar.bz$2|$ less

to see what is inside the file.$$ Does it contain all of the files and directories that you expect? $($Press the $\text{'}$q$\text{'}$ key to exit less when you are done.$)$