Add a group
groupadd cyrus -g 1000
To verify: cat /etc/group
Add user and put to group cyrus
useradd cyrus
Verify the account
cat /etc/passwd
Understand the sequence of passwd file
username:password:UID:GID:Name:Home directory:shell
Clear text password does not store in /etc/passwd, password is salted and hashed and stored in /etc/shadow file.
cyruslab 