Unix interview questions part 25
Unix interview questions part 25
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Total Questions: 20
1. c operator is used for changing the text.
Correct Answer is : TRUE
2. To change entire lines, ____ is used.
Correct Answer is : cc
3. Which operator is used in vi to filter text?
Correct Answer is : !
4. To delete from current cursor upto the first occurrence of }, which of the following will be used?
Correct Answer is : d / }
5. The command df. will _____
Correct Answer is : deletes from current cursor up to first occurrence of
6. To yank from current cursor up to first occurrence of string str in reverse direction, we can use:
Correct Answer is : y?str
7. The following command will_________ !! tr ‘[a-z]’ ‘[A-Z]’
Correct Answer is : changes the case of the current line from lower to uppercase
8. The command c0 will change the text from current cursor to the end of line.
Correct Answer is : FALSE
9. To sort all lines from current cursor to end of line, ____ can be used.
Correct Answer is : !Gsort
10. Which of the following is not a valid operator-command combination?
Correct Answer is : yy5
11. Wildcards are special characters which are used to replace or represent one or more characters.
Correct Answer is : TRUE
12. Which of the following is not a wild-card?
Correct Answer is : $
13. What does the following command do? $ echo *
Correct Answer is : lists all filenames in the current directory
14. Which command would be most suitable to remove the following files? dirx diry dirz dirzw
Correct Answer is : rm dir?
15. Which of the following files will not be deleted using “rm chap??” ?
Correct Answer is : chactd
16. Which of the following command will list all the hidden filenames in our directory having at least three characters after the dot (.)?
Correct Answer is : ls .???*
17. * and ? cannot match ____
Correct Answer is : / and .
18. rm chap0[1234] will delete all of the following files. chap01 chap02 chap03 chap04
Correct Answer is : TRUE
19. Which of the following files will not be listed using the following command? ls chap0[1-4]
Correct Answer is : chap05
20. Which of the following symbol is used for negating the character class?
Correct Answer is : !
