Script for detect changing UID of SAMBA user

FreeNAS 11.2, SAMBA with AD

Sript detect wrong user with sid begin with 900

wbinfo -i EDOMAIN\\user1
EDOMAIN\user1:*:90000012:90000015:test user:/home/EDOMAIN/user1:/bin/sh

#!/bin/sh
wbinfoexe=/usr/local/bin/wbinfo
for user in $(${wbinfoexe} -u)
do
 uid=$(${wbinfoexe} -i "$user" | /usr/bin/awk -F: '{print $3}' | /usr/bin/egrep "^900")
 if [ ! -z "${uid}" ];then
  echo "Abnormal user is $user $uid"
  ${wbinfoexe} --logoff-user="${user}"
  net cache flush
  /etc/ix.rc.d/ix-activedirectory restart
  break
 fi
done