#!/bin/ash
#200928 sfs
value() { egrep -o "(^| )$1=[^ ]+" /proc/cmdline | cut -d= -f2; } #sfs
[ "`value dir``value overlay`" ] && exit  #FULL
u="`checkupdates | wc -l`"
[ "$u" = 0 ] && exit
echo "$u
up"