怎么做：w！tee在Vim工作

Question

This answer states that :w !tee writes current buffer to stdout. Why and how does it work? Can I write :x !tee or :w !cat ? What's exclamation mark meaning in this case? (I assume it's not forcing operation.) Does it work only if tee command exists (not on Windows)?

Answer 1

! tells vim that it's a shell command and not a filename. So :w !tee or :w !cat gives the vim buffer to those commands as input. They in turn send the buffer content to stdout .

Try :w !wc -l , this will give you number of lines in your buffer printed on stdout .

You can also read output from a command into vim buffer. You can use read command with a shell command. For example, :read !date executes the date command on shell and sends the output back to vim buffer.