How do I delete a file system in Linux?

Related questions

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2. Do you really want to remove active logical volume?
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4. How do I wipe my hard drive Linux?
5. What does fdisk do in Linux?
6. Should I use LVM?
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Tags

1. #linux
2. #directories
3. #because
4. #command
5. #write
6. #prompted
7. #delete
8. #extra
9. #remove
10. #removing
11. #cannot
12. #directory
13. #shown
14. #files
15. #confirmation
16. #protected
17. #careful
18. #below
19. #deleted
20. #recovered