Unix problems
- 1. Which of the following keys is used to move the cursor to the end of the paragraph.
Options- A. }
- B. {
- C. |
- D. $
- E. None of the above Discuss
Correct Answer: }
- 2. Which command is used to terminate a process?
Options- A. shutdown
- B. haltsys
- C. cancel
- D. kill
- E. None of the above Discuss
Correct Answer: kill
- 3. Which command is used to remove a directory?
Options- A. rd
- B. rmdir
- C. dldir
- D. rdir
- E. None of the above Discuss
Correct Answer: rmdir
- 4. 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
Correct Answer: sort -r
- 5. 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
Correct Answer: ;
- 6. 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
Correct Answer: tee
Explanation:
The tee command reads standard input, then writes its content to standard output and simultaneously copies it into the specified file(s) or variables.
- 7. 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
Correct Answer: All of the above
- 8. 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
Correct Answer: s
- 9. 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 Discuss
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.
- 10. 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
Correct Answer: chmod u+x emp[1-3]
More in Computer Science:
Programming
Copyright ©CuriousTab. All rights reserved.