groupadd - create a new group.
1. To create a new Linux group.
$ sudo groupadd webadmin
2. To check
$ sudo grep webadmin /etc/group
3. To Create new group with a specific groupid
$ sudo groupadd webadmin2 -g 1030
4. To check
$ sudo grep 1030 /etc/group
5. To create group with group id with certain range of id
$ sudo groupadd webadmin3 -K GID_MIN=1500 -K GID_MAX=2000
