What does awk command do?

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Tags

1. #tasks
2. #particular
3. #scripts
4. #command
5. #complex
6. #processing
7. #analyzing
8. #commands
9. #files
10. #powerful
11. #lines
12. #organized
13. #called
14. #method
15. #written
16. #should
17. #columns
18. #programs
19. #simple