Vim: Reading from stdin

Here is a neat tip for Vim.

To read from stdin use

<other commands> | gvim -R -

-R instructs Vim to read the file in read-only mode.
- is a utility convention that means open from stdin. (See Guideline 13 of Utility Syntax Guidelines from the Posix standard.)

Source: http://stackoverflow.com/questions/230718/redirection-and-vim