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#+title: Mu Cheatsheet
* Mu Cheatsheet
Here are some tips for using =mu=. If you want to know more, please refer to the
=mu= man pages. For a quick warm-up, there's the =mu-easy= man-page.
** Indexing your mail
You can index your mail with:
#+begin_src sh
$ mu index
#+end_src
If =mu= did not guess the right Maildir, you can set it explicitly:
#+begin_src sh
$ mu index --maildir=~/MyMaildir
#+end_src
If you want to exclude certain directories from being indexed (for example,
directories with spam-messages), put a file called =.noindex= in the directory
to exlude, and it will be ignored when indexing (including its children)
** Finding messages
After you have indexed your messages, you can search them. Here are some
examples.
*** messages about Helsinki
#+begin_src sh
$ mu find Helsinki
#+end_src
*** messages to Jack with subject jellyfish containing the word tumbleweed
#+begin_src sh
$ mu find to:Jack subject:jellyfish tumbleweed
#+end_src
*** messages between 2 kilobytes and a 2Mb, written in December 2009 with an attachment from Bill
#+begin_src sh
$ mu find size:2k..2m date:20091201..20093112 flag:attach from:bill
#+end_src
*** unread messages about soccer or socrates or ...
#+begin_src sh
$ mu find 'subject:soc*' flag:unread
#+end_src
** Further processing of matched messages
If you need to process the results of your queries with some other program,
you can return the results as a list of absolute paths to the messages found:
For example, to get the number of lines in all your messages mentioning
/banana/, you could use something like:
#+begin_src sh
$ mu find --fields="'l'" banana | xargs wc -l
#+end_src
Note that we use ='l'=, so the returned message paths will be quoted. This is
useful if you have maildirs with spaces in their names.
For further processing, also the ~--format=(xml|json|sexp)~ may be
interesting.
** Integration with mail clients
See the example in the =mu-find= man page.
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