Command-Line Applications in Ruby

Transcript

1. COMMAND-LINE APPLICATIONS IN RUBY Mark Ranallo @markdr Friday, April 6,

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2. ABOUT

3. Friday, April 6, 12

4. I

5. WHY

6. WHY

7. OK

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9. 1. Rule

10. Rule

11. STREAMS Text http://www.flickr.com/photos/flavioxavier/1765786336/sizes/m/in/photostream/ Friday, April 6, 12

12. STDIN,

13. STDIN •Basically

14. STDOUT,

15. PIPES http://www.flickr.com/photos/28481088@N00/332869063/ by tanakawho Friday, April 6, 12

16. gem list | cut -d" " -f1 | xargs sudo

    gem uninstall -aIx Friday, April 6, 12

17. gem list | cut -d" " -f1 | xargs sudo

    gem uninstall -aIx Get

18. Friday, April 6, 12

19. EXAMPLE

20. DEMO Friday, April 6, 12

21. ENVIRONMENT http://www.flickr.com/photos/ironrodart/4132833849/sizes/m/in/photostream/ Friday, April 6, 12

22. •Environment

23. MESSAGE='Hello SD Ruby' ruby -e "puts ENV['MESSAGE']" QUEUE=file_serve rake environment

    resque:work EXAMPLES Friday, April 6, 12

24. Rule

25. http://www.flickr.com/photos/defragged/294863/sizes/m/in/photostream/ Exit

26. •Exit

27. EXAMPLES Friday, April 6, 12

28. EXAMPLES

29. Friday, April 6, 12

30. EXAMPLES

31. SIGNALS http://www.flickr.com/photos/fransimo/2856317826/sizes/m/in/photostream/ Friday, April 6, 12

32. •Signals

33. COMMON

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35. SYSTEM

36. EXAMPLE Friday, April 6, 12

37. DEMO Friday, April 6, 12

38. Rule

39. TIPS

40. OPTIONPARSER •Included

41. EXAMPLE Friday, April 6, 12

42. GEMS/HELPERS •Option

43. ARUBA Scenario: Backing up test.conf Given an empty file named

    "test.conf" When I run `mv test.conf test.conf.bak` Then the exit status should be 0 And the following files should exist: | test.conf.bak | And the following files should not exist: | test.conf | http://hectcastro.me/2011/10/25/testing-command-line-applications-with-aruba.html http://rubygems.org/gems/aruba Friday, April 6, 12

44. GEMS

45. BOOKS http://workingwithunixprocesses.com/ http://pragprog.com/book/dccar/build-awesome-command-line-applications-in-ruby Friday, April 6, 12

46. THANKS! Friday, April 6, 12