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  • Question
  • Which of the following keys is used to delete the character beneath the cursor?


  • Options
  • A. x
  • B. X
  • C. dd
  • D. D
  • E. None of the above

  • Correct Answer



  • Unix problems


    Search Results


    • 1. Which of the following command is used to go to home directory?

    • Options
    • A. cd..
    • B. cd/
    • C. cd
    • D. cd HOME.
    • E. None of the above
    • Discuss
    • 2. Which option is used with cmp command to give a detailed list of the byte number and the differing bytes in octal for each character that differs in both the files?

    • Options
    • A. -l
    • B. -d
    • C. -r
    • D. -b
    • E. None of the above
    • Discuss
    • 3. Which command is used with vi editor scroll half page backward?

    • Options
    • A. [Control-d]
    • B. [Control - u]
    • C. [Control-c]
    • D. [Control -P]
    • E. None of the above
    • Discuss
    • 4. Which command is used with vi editor to move the cursor to the left?

    • Options
    • A. i
    • B. j
    • C. k
    • D. h
    • E. None of the above
    • Discuss
    • 5. The first set of the three permissions (rw) pertains to the owner of the file, indicating that the owner has

    • Options
    • A. executable permission only
    • B. write and executable permissions
    • C. both read and executable permissions.
    • D. both read and write permissions
    • E. None of the above
    • Discuss
    • 6. Which of are following internal commands is used in mail to forward mail to user in user-list?

    • Options
    • A. r user-list
    • B. m user-list
    • C. d user-list
    • D. e user-list
    • E. None of the above
    • Discuss
    • 7. Which of the following command is used to count just the number of lines contained in a file?

    • Options
    • A. wc -l
    • B. wc -c
    • C. wc -w
    • D. wc -r
    • E. None of the above
    • Discuss
    • 8. Which of the following special shell variables is used to process number of the current shell?

    • Options
    • A. $!
    • B. $$
    • C. $0
    • D. $*
    • E. None of the above
    • Discuss
    • 9. Which of the following signs is used to back up over typing errors in vi?

    • Options
    • A. @
    • B. #
    • C. $
    • D. !
    • E. None of the above
    • Discuss
    • 10. Which command is used to move all files to the bin sub-directory of the parent directory?

    • Options
    • A. mv *.* /bin/
    • B. mv * /bin/*
    • C. mv * ../bin
    • D. mv * ../bin *.*
    • E. None of the above
    • Discuss


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