** Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement! **

Create a User

Both adduser and useradd can be used to create a new user. adduser is interactive while useradd is non-interactive. It is suggested that you use useradd in batch …

Linux

1. Get information of the staff group.

   $ getent group staff
   staff:x:20:
   

2. Get group ID of the staff group.

   $ getent group staff | cut -d: -f3
   20
   

Mac

1. Get information of the staff group.

   $ dscl . -read /Groups/staff
   

2. Get group ID of the staff group.

   $ dscl . -read /Groups/staff | awk …