The document introduces 'rush', a Unix shell with Ruby syntax by Adam Wiggins, detailing its installation and usage. It provides examples of file manipulation, searching, and remote execution of commands, illustrating how to manage files and execute Ruby code within the shell environment. Additionally, it discusses advanced functionalities like regex file replacement and process management in a concise manner.

1. ru sh a shell that will yield to you

2. http://flickr.com/photos/exquisitur/2551255999/

3. What is ru sh ? Unix shell with ruby syntax and idioms by Adam Wiggins (Heroku)

4. Install and Run $ sudo gem install rush $ rush rush> home=> localhost:/Users/schlueter/

5. No Working Directory $ home => localhost:/Users/schlueter $ root=> localhost://// $ rushmate = home[ "mydev/github/rushmate/" ] => localhost:/Users/schlueter/mydev/github/rushmate/

6. But ls Still Works $ home[ "mydev/github/rushmate/" ].ls /Users/schlueter/mydev/github/rushmate/ coverage/ lib/ test/ History.txt MIT-LICENSE Manifest.txt

7. Make a Variable $ rushmate = home[ "mydev/github/rushmate/" ]

8. File Manipulation http://flickr.com/photos/takashi/18862634/

9. Rename # assign a file to a variable $ file = rushmate[ 'app/models/rushmate.rb' ] $ file.rename 'russian_mate.rb'

10. Duplicate a File $ file = rushmate[ 'README' ] $ file.duplicate 'README.markdown'

11. Copy Different Directory $ file = rushmate[ 'README' ] $ file.copy_to other_project[ 'README' ]

12. Move $ file = rushmate[ 'README' ] $ file.move_to home[ 'Desktop/' ]

13. Write a File $ file = rushmate[ 'README' ] $ file.write "You Read Me"

14. Read a File $ rushmate[ "README" ].contents You Read Me

15. File Globbing

16. Basic Globbing $ rushmate[ "**/*.rb" ] .../mydev/github/rushmate/lib/rushmate.rb.../mydev/github/rushmate/lib/rushmate/command.rb.../mydev/github/rushmate/lib/rushmate/exit.rb ... => 9 x Rush :: File

17. Glob into an Editor $ rushmate[ "**/*.rb" ].vi $ rushmate[ "**/*.rb" ].mate

18. Operate on Results $ rails_proj[ '**/*.rhtml' ].each { | f | f.rename f.name.gsub( / \. rhtml/ , '.html.erb' ) }

19. Results Are an Array $ rushmate[ "**/*.rb" ].reject {| f | f.name.match( /test.rb/ )} Go Nuts! $ rails_project[ "**/*.rhtml" ] + rails_project[ "**/*.html.erb" ]

20. embed http://flickr.com/photos/liamngls/413522957/ Rush :: EmbeddableShell . new .execute_in_shell do #anything in here delegates to rush end

21. Sake Quick Index of RDoc task 'rdoc:local' => 'rush' do shell = Rush :: EmbeddableShell . new shell.execute_in_shell do end end ruby = root[ &quot;/Library/Ruby/Gems/1.8/&quot; ] indexes = ruby[ &quot;doc/*/rdoc/index.html&quot; ] hrefs = indexes.collect { | f | path = f.full_path text = path.match( /doc \/ (.*) \/ rdoc/ )[ 1 ] &quot;<a href= \&quot; #{path} \&quot; >#{text}</a>&quot; } home[ &quot;rdoc.html&quot; ].write hrefs.join( &quot;<br />&quot; ) home.bash( &quot;open rdoc.html&quot; )

22. sake rdoc:local

24. Refactoring http://flickr.com/photos/tonyjcase/2262229518/

25. Search $ work[ &quot;**/*.rb&quot; ].search( / \b Rushmate \b / ) .../test/user_input_test.rb => assert_equal(&quot;foo&quot;, Rushmate ::.../lib/rushmate/command.rb => module Rushmate .../lib/rushmate/exit.rb => module Rushmate ...7 matching files with 25 matching lines $ work[ &quot;**/*.rb&quot; ].search( / \b Rushmate \b / ).mate

26. and Replace $ rushmate[ &quot;**/*.rb&quot; ].replace_contents! ( / \b Rushmate \b / , &quot;RussianMate&quot; ) .../lib/rushmate.rb.../lib/rushmate/command.rb.../lib/rushmate/exit.rb => 9 x Rush :: File

27. Regex is your friend $ project_files.replace_contents! ( /User.authenticate \(\s *(.*), \s *(.*) \) / , 'User.authenticate( \\ 2, \\ 1)' ) User .authenticate(user, password) User .authenticate(password, user)

28. Processes ff.alive? ff.mem ff.pid ff.cpu ff.kill $ ff = processes.filter( :cmdline => /firefox/ ).first

29. Real World Rush :: EmbeddableShell . new .execute_in_shell do end ff_processes = processes. filter ( :cmdline => /firefox/ ) if ff = ff_processes.select{| p | p.mem > 400000 }.first ff_cmdline = ff.cmdline ff.kill home.bash ff_cmdline, :background => true end

30. Permissions $ file.access = { :user_can => :read_and_write , :group_and_other_can => :read } $ file.access[ :user_can_read ] => true

31. Use BASH if you must $ rushmate.bash &quot;rm -rf .&quot; # D'oh!

32. Shell Locally Act Globally

33. Remote $ remote = Rush :: Box . new ( 'user@server.com' ) $ remote[ &quot;/u/app/current/REVISION&quot; ].contents => 160

34. Starts a Mongrel on Remote Server Use in production with caution

35. Customize # setup variables to common directories rushmate = home[ &quot;mydev/github/rushmate/&quot; ] # setup variables to common servers qa = Rush :: Box . new ( 'user@qa.local' ) ~/.rush/evn.rb

36. Cheap Backup def cheap_backup (directory) unless directory.dir? puts &quot;cheap backup only works on dirs&quot; return end backup_path = directory.path + &quot;/&quot; + directory.name + &quot;.bak&quot; if self [backup_path].exists? puts &quot;backup already exists&quot; else directory.duplicate(directory.name + &quot;.bak&quot; ) end end

37. Extend # allows you to run # directory.coverage def coverage self .rake( &quot;coverage&quot; ) end ~/.rush/commands.rb

38. Another Command def ruby_files self [ &quot;**/*.rb&quot; ] end $ rushmate.ruby_files .../mydev/github/rushmate/lib/rushmate.rb.../mydev/github/rushmate/lib/rushmate/command.rb.../mydev/github/rushmate/lib/rushmate/exit.rb ... => 9 x Rush::File

40. TextMate Rushmate :: Command . new { # find ruby files with the current word in textmate found_files = project_directory[ &quot;**/#{current_word.downcase}.rb&quot; ] if found_files.size == 1 found_files.mate else menu_files = found_files.collect { | f | f.full_path.gsub(project_directory.full_path, &quot;&quot; ) } project_directory[user_input.quick_menu_from_array(menu_files)].mate end }

41. The Take Away

42. Questions ?

43. Thank You schlueter @gmail.com http://www.simpl try.com