Unix interview questions part 13
Unix interview questions part 13
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Total Questions: 20
1. Which of the following commands will be used to delete 6 lines from the current cursor location?
Correct Answer is : 6dd
2. Which command is used for putting deleted lines or part of lines at a different location?
Correct Answer is : p and P
3. Both ‘p’ and ‘P’ command puts text right/left or above/below on the basis of line deleted.
Correct Answer is : TRUE
4. To copy (yank) lines in vi editor, we use ______ command.
Correct Answer is : yy
5. To copy 10 lines from the current cursor location, we can use _____
Correct Answer is : 10yy
6. We can use ‘yy’ command for copy and paste operation.
Correct Answer is : TRUE
7. Which command is used for joining lines?
Correct Answer is : J
8. Which command will be used to join 4 lines with the current line?
Correct Answer is : 5J
9. Which of the following undo a most recent single editing change?
Correct Answer is : u
10. ___ command allows us to undo a number of changes that have been made to a single line before moving away from that line.
Correct Answer is : U
11. Which command is used to redo the changes made by the undo command?
Correct Answer is : ctrl-r
12. ’10u’ command will reverse our 10 last editing actions.
Correct Answer is : TRUE
13. Which symbol is used for repeating the last command?
Correct Answer is : .
14. Which command is used for printing the current working directory?
Correct Answer is : pwd
15. Which command is used for changing the current directory?
Correct Answer is : cd
16. cd command cannot be used without any argument.
Correct Answer is : FALSE
17. Which command is used for creating directories?
Correct Answer is : mkdir
18. We can create multiple directories by single invocation of mkdir command.
Correct Answer is : TRUE
19. What does the following command do? $ mkdir dir dir/dir_01/dir_02
Correct Answer is : create dir, dir_01 and dir_02
20. Sometimes we are unable to create a directory because ______________
Correct Answer is : the directory may exist, there may be an ordinary file, the permissions set for the current directory does not allow the creation
