*) m=$1; y=$2 ;; # 2 arguments; month and year
esac
-echo would run, after first case: "/usr/bin/cal $m $y"
+#echo would run, after first case: "/usr/bin/cal $m $y"
case $m in
jan*|Jan*|JAN*) m=1 ;;
*) y=$m; m="" ;; # just a year
esac
-echo running: "/usr/bin/cal $m $y"
+#echo running: "/usr/bin/cal $m $y"
/usr/bin/cal $m $y # run the real one