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  • Question
  • Which command is used to display the top of the file?


  • Options
  • A. cat
  • B. head
  • C. more
  • D. grep
  • E. None of the above

  • Correct Answer
  • head 

    Explanation
    The head command displays the first few lines at the top of a file. It can be useful when you want a quick peek at a large file, as an alternative to opening the file.

  • Unix problems


    Search Results


    • 1. Which of the following keys is used to replace a single character with new text?

    • Options
    • A. S
    • B. s
    • C. r
    • D. C
    • E. None of the above
    • Discuss
    • 2. Which of the following files will displayed by this command cat *ch*

    • Options
    • A. patch
    • B. catch
    • C. .ch
    • D. All of the above
    • E. None of the above
    • Discuss
    • 3. The command which transcribes the standard input to the standard output and also makes a copy of the same in a file is

    • Options
    • A. tee
    • B. tr
    • C. sort
    • D. grep
    • E. None of the above
    • Discuss
    • 4. Which symbol is used to separate more than one command in the same command line?

    • Options
    • A. $
    • B. #
    • C. :
    • D. ;
    • E. None of the above
    • Discuss
    • 5. Which command is used to sort the lines of data in a file in reverse order

    • Options
    • A. sort
    • B. sh
    • C. st
    • D. sort -r
    • E. None of the above
    • Discuss
    • 6. Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3?

    • Options
    • A. chmod u+x emp[1-3]
    • B. chmod 777 emp*
    • C. chmod u+r ??? emp
    • D. chmod 222 emp?
    • E. None of the above
    • Discuss
    • 7. Which of the following commands is used to display your working directory?

    • Options
    • A. dir
    • B. prompt $p$g
    • C. pwd
    • D. path
    • E. None of the above
    • Discuss
    • 8. Which of the following directories contain all the Alias created by a user, including his login directory?

    • Options
    • A. /tmp
    • B. /etc
    • C. /usr
    • D. /dev
    • E. None of the above
    • Discuss
    • 9. Which of the following commands is used to obtain a list of all files by modification time?

    • Options
    • A. ls -1
    • B. ls -t
    • C. ls -i
    • D. ls -R
    • E. None of the above
    • Discuss
    • 10. Which symbol will be used with grep command to match the pattern pat at the beginning of a line?

    • Options
    • A. ^pat
    • B. $pat
    • C. pat$
    • D. pat^
    • E. None of the above
    • Discuss


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