Emacs Shell Command on Region

Performing an Operation on a Region

Problem
when using emacs as the e-mail editor within mutt, messages that have been sent with the quoted-printable encoding appear with replacement strings instead of real characters...
Solution with konwert
Select the region that has to be converted, then press C-u ESC-¦ konwert qp-8bit RET. This passes the contents of the selected region through the converter konwert, changing quoted-printable to 8bit encoding, and replaces the region with the output of the conversion.