Archived. This already exists here: https://github.com/jjdredd/r2pipe.el/blob/master/r2pipe.el
A way to use radare2 from emacs lisp. Eventually, this should be used in a client like magit, but with radare2 instead of git.
This opens a radare2 process for the file at /usr/bin/ls and prints the
first 10 bytes in hexadecimal.
(setq r2pipe (r2open "/usr/bin/ls"))
(r2cmd r2pipe "x 10")