Index: nanobsd/Files/usr/local/sbin/scrub
===================================================================
--- nanobsd/Files/usr/local/sbin/scrub  (revision 10055)
+++ nanobsd/Files/usr/local/sbin/scrub  (working copy)
@@ -35,7 +35,7 @@
 {

        cat<<-__EOF__
-       usage: $0 -p <pool> [<options>]
+       usage: $0 [<options>] pool
        Where options is:
        -t      Threshold days between scrubs
 __EOF__
@@ -50,12 +50,9 @@
        local rc=0
        local _last_scrub _scrub_diff _status pool

-       while getopts "p:t:" opt
+       while getopts "t:" opt
        do
                case "${opt}" in
-               p)
-                       pool=${OPTARG}
-                       ;;
                t)
                        threshold=${OPTARG}
                        ;;
@@ -66,11 +63,15 @@
                esac
        done

-       if [ -z "${pool}" ]; then
+       shift $(( $OPTIND - 1 ))
+
+       if [ $# -ne 1 ]; then
                usage "${opts}"
                return 2
        fi

+       pool=$1
+
        # Piece of code based on 800.scrub-zfs from periodic
        _last_scrub=$(zpool history ${pool} | \
                egrep "^[0-9\.\:\-]{19} zpool scrub ${pool}\$" | tail -1 |\