Use RMAN restore database validate before restoring database in the same script

Hi All, I have a rman restore script that I would like to execute and I would like to validate the backup before I restore and I'd like to do it in one script is this possible. Below is a simple rman restore that I plan on using.

connect target;
 connect catalog HR89QAT/rcvhcm@RCVHCM;
 shutdown immediate;
 startup mount;
run
{
 ## restore database validate;
  ## if validate invalid or not good then exit otherwise restore database
   allocate channel c5 type 'sbt_tape';
   allocate channel c6 type 'sbt_tape';

    restore database;
    recover database;
    alter database open;

   release channel c5;
   release channel c6;

}


Thanks,
7Souls