Open a buffer as a vertical split in VIM

Question

If you are editing a file in VIM and then you need to open an existing buffer (e.g. from your buffer list: :buffers) how can you open it in a vertical split?

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Answer 1

:vsp | b1

1 being some buffer number. Use buffers to list all buffers.

Here's some additional info on splits, if you're interested. Link