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Subject: Dired preview of file   [was: shr.el rename?]
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Xref: news.gmane.io gmane.emacs.devel:250971
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/250971>

> More interestingly, it should be possible in dired to show a quick
> preview of .el files by popping up the first line in another temporary
> buffer as you navigate through the dired buffer:-)

Somewhat similar: with `dired-aux.el', `y' shows the
"file type".  E.g.:

 info+.elc: Emacs/XEmacs v23 byte-compiled Lisp data