CMPSCI 197J: HW1

  NAME: ..........................................                                              DUE DATE: Jan 07, 1999
     
    A. Define in a sentence or two:                                                (5 points)
         
      1. Operating System:
       
       

      2. Kernel:
       
       

      3. Shell:
       
       

      4. POSIX.2:
       
       

      5. Open System:
       
       

    B. Who command                                                                        (20 points)
     
      1. What option would you give to who to display the run-level of the local system?
       
       

      2.  Compare the functionality of who am i and whoami .
       
       
       
       
       

      3.  Give 3 other commands which contain information related to the who command.
       
       
       

      4.  Suppose XYZ(2) was one of the related commands from the previous question. What does the number 2 in parenthesis stand for?(Hint:  man is a UNIX command just like who  or ls. You want to find more info on man. Be patient.  You might have to scroll through a lot of  information to get to the answer.)