Re: indexing files?

[Rusi]

On Monday, March 10, 2014 12:40:33 PM UTC+5:30, Jambunathan K wrote:
> Martin writes:

> > Hi there,
> > since a few weeks I'm using mu4e and I find the search thing very
> > useful.
> > I wonder if there would also be something like mu4e not for emails but
> > for files in my Home directory?  If you can give me hints, I would be
> > very excited. :)

> Emacs has a search engine and it is called rgrep and it doesn't rely on
> indices.  If you really want index - in that you have a custom markup
> that explicityl specifies what an index is - you can go with etags or
> ctags.

Ive been getting more and more confused with all the greps in emacs:
rgrep, lgrep, rzgrep some others Ive forgotten
not to mention good-ol grep

Any pointers to which/where/how of these??