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