What is the use of awk command?

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Tags

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