What's a hard link in Linux?

Related questions

1. What happens to hard link when file is deleted?
2. What happen when you create a hard link?
3. What is the use of hard link?
4. What is link file in Linux?
5. How do you create a symbolic link in Unix?
6. How do I remove a link in Linux?
7. What is the difference between soft link and hard link?
8. What is a Linux symbolic link?
9. Can you hard link a directory?

Tags

1. #filesystem
2. #command
3. #cannot
4. #partitions
5. #really
6. #existing
7. #hardlink
8. #definition
9. #create
10. #boundaries
11. #however
12. #created
13. #cross
14. #directories
15. #across
16. #using