olines=`wc -l $root/etc/aliases | awk '{print $1}'`
nlines=`wc -l $root/etc/aliases.new | awk '{print $1}'`
diff=`expr $nlines - $olines`
olines=`wc -l $root/etc/aliases | awk '{print $1}'`
nlines=`wc -l $root/etc/aliases.new | awk '{print $1}'`
diff=`expr $nlines - $olines`