CMPSCI 197J: HW3

1. Distinguish the functionality of the  two commands                                      (5 points)
          1. nice mycommand& ; nohup  mycommand&
          2. at -f test 1530 ; batch test

2.                                                                                                                             (5 points)
Arrange for a list of all your files (including 'dot' files) and directories to be mailed to you every weekday at 6p.m.

3.                                                                                                                              (5 points)
Copy the contents of your current directory to /tmp/backup preserving all links.

4.                                                                                                                               (5 points)
Write a script which will request you for two numbers, representing width and height of a rectangle in cm, and output the area of the rectangle both in square metres and square inches(1 inch = 2.54cm)

5.                                                                                                                                (5 points)
Ensure that PATH is set; if it is not reset it to /bin:/usr/bin, and inform the user of its value.