$ @span .sh-fn {-touch} foo bar
$ @span .sh-fn {-cat} <<@span .sh-hd {-EOF} >hash-filename
@span .sh-hd {-#!/bin/sh}

@span .sh-hd {-sha1sum | awk '{ print \\$1 \}'}
@span .sh-hd {-EOF}
$ @span .sh-fn {-chmod} +x hash-filename
$ @span .sh-fn {-ls} foo bar | @span .sh-fn {-mmv} -i ./hash-filename
$ @span .sh-fn {-ls}
e242ed3bffccdf271b7fbaf34ed72d089537b42f  hash-filename
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15