Unix Quiz - 1

15 Questions  I  By Nbans
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Unix Quizzes & Trivia
Unix Quiz

  
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Questions and Answers

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  • 1. 
    In Bourne shell, you have to EXPORT the declared environmental variables.
    • A. 

      True

    • B. 

      False


  • 2. 
    What does "../.." stand for ?
    • A. 

      Current directory

    • B. 

      Up one directory

    • C. 

      Up two directories

    • D. 

      None of Above


  • 3. 
    What does cd/ mean in UNIX?
    • A. 

      Current directory

    • B. 

      Root directory

    • C. 

      Up one directory

    • D. 

      None of the above


  • 4. 
    Which variable gives the exit status of the last command executed in the shell?
    • A. 

      $*

    • B. 

      $!

    • C. 

      $?

    • D. 

      $@


  • 5. 
    How will you assign the value of variable var2 to var1?
    • A. 

      Var1=var2

    • B. 

      $var1=$var2

    • C. 

      Var1=$var2

    • D. 

      $var1=var2


  • 6. 
    In UNIX, it is possible for more than one file descriptor to point to same file.
    • A. 

      True

    • B. 

      False


  • 7. 
    Which of these is true about assign a null value to the variable in bash?
    • A. 

      A=""

    • B. 

      A=

    • C. 

      A=''

    • D. 

      All of above


  • 8. 
    Command to change owner of the file in UNIX.
    • A. 

      Chowner

    • B. 

      Chown

    • C. 

      Both

    • D. 

      None


  • 9. 
    How many prompts are available in a UNIX system?
    • A. 

      One

    • B. 

      Two

    • C. 

      Three

    • D. 

      Zero


  • 10. 
    What is the purpose of the shell?
    • A. 

      The shell keeps the end users from accessing the kernel for security reasons.

    • B. 

      The shell protects the kernel from the shortcomings of the user.

    • C. 

      The shell allows the user to do things that the kernel could not accommodate.

    • D. 

      All of above


  • 11. 
    What is the command to find the differences in the lines containing "2011" between the files a1.txt and a2.txt
    • A. 

      Grep 2011 | diff a1.txt a2.txt

    • B. 

      Diff a1.txt a2.txt

    • C. 

      Diff a1.txt a2.txt | grep 2011

    • D. 

      None of above


  • 12. 
    What is the command to display environment variables?
    • A. 

      DISPLAY ENV

    • B. 

      PRINT ENV

    • C. 

      DISPENV

    • D. 

      PRINTENV


  • 13. 
    Output of the following: $ v= 'ls' $ echo $v
    • A. 

      List all files

    • B. 

      Ls

    • C. 

      Error


  • 14. 
    Which one is not the environment variable?
    • A. 

      PATH

    • B. 

      RANDOM

    • C. 

      READ

    • D. 

      DISPLAY


  • 15. 
    Which part of UNIX is responsible for sending basic instructions to the computer's processor?
    • A. 

      Kernel

    • B. 

      Shell

    • C. 

      Both


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