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Comandos para usar VIM

:q Salir del editor sin guardar quit :q! Salir del editor sin guardar ni pedir confirmacion quit ya! :wq! Salir del editor guardando sin pedir confirmacion write & quit ya!

:w f2.txt Guardar en un fichero f2.txt y seguir write en f2.txt

:e f1.txt Cierra el fichero actual y abre f1.txt edit f1.txt

Comandos Ruby on Rails

rails g migration remove_name_from_productos

rails g migration add_name_to_productos

Post.joins(:categorizations).where(:categorizations => {:category_id => [3, 5]}) Post.joins(:categories).where(:categories=> {:id => [3, 5]})

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