Let's say I want to grep word1 and word2.

If I use the grep command for word1 I get the results in the *grep* buffer. If I then use the grep command for word2 I loose the old results and get the word2 results in a new *grep* buffer.

I want two see the two grep buffers (for example *grep 1* and *grep 2*) at the same time: How to get this?

  • emacswiki.org/emacs/GrepMode mentions grep-a-lot.el, but I have never tried it. Commented Oct 22, 2016 at 10:24
  • 2
    You may use M-x rename-buffer in *grep* buffer to rename it. Commented Oct 22, 2016 at 10:39
  • 2
    @EvgenyPanasyuk But then you need to move to another buffer before running grep again, or it will reuse the renamed buffer (emacs 24.5.1)
    – JeanPierre
    Commented Oct 22, 2016 at 14:18
  • @JeanPierre Yes, I also noticed this. Commented Oct 22, 2016 at 15:39

3 Answers 3


You can do this easily if you use library Grep+ (grep+.el).

Use + in your first *grep* buffer, followed by g. The + renames the first *grep* buffer by appending <N> (N=2,3,...) to it, and it opens a new buffer named *grep*. The g in that buffer then launches a new grep command there.

C-h k + tells you this:

+ runs the command grepp-new-grep-buffer, which is an interactive compiled Lisp function in grep+.el.

It is bound to +, menu-bar grep grepp-new-grep-buffer.


Rename current grep buffer and switch to new buffer *grep*. Current buffer must be a grep buffer. It is renamed to *grep*<N>.


You can save the word1 result in some temporary file then do another grep for word2.

  • 1
    Have you tried that? I found that if I stay in this saved buffer, it will be reused for the next grep.
    – JeanPierre
    Commented Oct 22, 2016 at 14:14
  • @JeanPierre If you go back to the directory you want to grep, you don't get this problem.
    – rl1
    Commented Oct 22, 2016 at 16:53

You can pipe your grep's with a double pipe ('||'). This might be a alternative.

 M-x grep 
 grep -nrH 'word1' ||  grep -nrH 'word2'

The results of word1 will appear and afterwards the results of word2. BUT, both in the same grep-buffer...

  • 2
    That doesn't sound like what OP is requesting. I think the request is to have two separate grep buffers, one for word1 matches and one for word2 matches, not a single grep buffer for matches of both word1 and word2.
    – Drew
    Commented Apr 2, 2019 at 14:43

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