if $1x = x goto info
if ! -r $1.mx  goto nfg
echo i
cat $1.mx /lib/mxend > $1.f
fc $1.f /lib/mxlib
echo ii
rm $1.f
a.out
exit
: info
cat /usr/pub/explor
exit
: nfg
echo $1.mx: does not exist or is not readable
