How do I find my Redhat OS version?

Related questions

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4. Is there a free version of Redhat?
5. What is the latest Linux kernel version?
6. How can I tell if redhat is 32 or 64 bit?
7. Is my Linux 64 bit?
8. Is my hardware 64 bit?
9. Is my PC 32bit or 64bit?
10. Is CentOS compatible with Redhat?

Tags

1. #release
2. #linux
3. #solution
4. #distributions
5. #version
6. #shows
7. #check
8. #command
9. #redhat
10. #another
11. #based
12. #issue
13. #kernel
14. #other
15. #uname
16. #execute
17. #things