Named a file wrong? Need to move it to another directory? No big deal. What if you named a view file foo.haml instead of the proper foo.html.haml? mv app/views/widgets/foo.{haml,html.haml} Does exactly what you think it does. It expands to: mv app/views/widgets/foo.haml app/views/widgets/foo.html.haml Since it's just bash, it also works with git: git mv app/views/widgets/foo.{haml,html.haml} Works within the path too: git mv app/views/{widget,wh…