How do I verify checksum on Mac?

Related questions

1. How is checksum calculated in UDP?
2. What is checksum in transport layer?
3. What are hashes used for?
4. How is a checksum used?
5. What is checksum error?
6. Is TCP checksum necessary or could TCP allow IP to checksum the data?
7. How TCP checksum is calculated?
8. How is checksum of IP header calculated?
9. Why is UDP unreliable?
10. What is the function of the checksum field in a TCP header?

Tags

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2. #spotlight
3. #whether
4. #provided
5. #terminal
6. #downloaded
7. #followed
8. #checksum
9. #firstly
10. #verify
11. #depending
12. #either
13. #shasum
14. #launchpad
15. #utilities
16. #directly
17. #searching
18. #applications
19. #developer