Write the command that can be used to perform the following:

a. Back up the contents of the /var directory (which contains symbolically linked files) to the second nonrewinding SCSI tape device on the system using the tar utility.

b. Append the file /etc/inittab to the archive created in Exercise 3a.

c. Create a tarball called /stuff.tar.gz that contains all files in the /root/stuff directory.

d. Use the cpio utility to back up all files in the /var directory (which contains symbolically linked files) to the first rewinding IDE tape device that has a block size of 5KB.

e. Perform a full filesystem backup of the/var filesystem using the dump utility and record the event in the /etc/dumpdates file.

f. View the contents of the archives created in Exercises 3a, c, d, and e.

g. Extract the contents of the archives created in Exercises 3a and c to the /root directory.

h. Extract the contents of the archives created in Exercises 3d and e to their original locations.