Unix Practice Test 4

1. Which command is used to redo the changes made by the undo command?

2. In Shell’s interpretive cycle, the shell first scans for ____ in the entered command.

3. Which of the following flag will be used for interactive substitution?

4. We can prefix repeat factor with word navigation commands.

5. How many files are used for representing different standard streams?

6. Providing a backslash (\) before the wild card to remove its special meaning is called _____

7. Which of the following undo a most recent single editing change?

8. Which one of the following command is invalid?

9. Which of the following shell doesn’t support ! symbol for negating the character class?

10. Which command would be most suitable to remove the following files?

dirx  diry  dirz  dirzw