I really like run some system command in vim like
:!rspec
but the annoying thing is I can't scroll up to see the output information
I'm using Macvim in Mac 10.9, anyone know how to do this?
As far as I know, you can't scroll up in output that comes from an external source.
Messages do have a simple scrolling facility but only for the messages over which Vim has full control. See :h messages.
Looking at your screenshot though, I can tell you that you're doing it wrong. Running RSpec through :!rspec is inefficient. Vim has an RSpec compiler in its runtime.
:compiler rspec
:make
Now RSpec output is parsed and filled into your quickfix list for easy navigation.
For even more RSpec power such as asynchronous test runs check out dispatch.vim.
来源：https://stackoverflow.com/questions/18130722/how-to-scroll-up-to-view-the-output-of-system-command-in-vim