path: root/bin/d2u

#!/bin/sh
if [ "$#" -eq 0 ] ; then
    printf >&2 'd2u: Need a filename\n'
    exit 2
fi
r=$(printf '\r')
for fn ; do
    ed -s -- "$fn" <<EOF || ex=1
g/$r\$/ s/$r\$//
w
EOF
done
exit "${ex:-0}"