[root@desktop ~]# groupadd -g 40000 adminuser

[root@desktop ~]# useradd natasha -G adminuser

[root@desktop ~]# useradd harry -G adminuser

[root@desktop ~]# useradd sarah -s /sbin/nologin

[root@desktop ~]# for user in natasha harry sarah

> do

> echo redhat |passwd --stdin ${user}

> done