Manage group members from the command line

For local groups:

To list members of the local group "administrators":

net localgroup administrators

To add "jbloggs" to the local group "administrators":

net localgroup administrators jbloggs /add

To remove "jbloggs" from the local group "administrators":

net localgroup administrators jbloggs /delete

For domain groups:

To list members of the group "Domain Admins":

net group "Domain Admins" 

To add "jbloggs" to the group "Domain Admins":

net group "Domain Admins" jbloggs /add /domain

To create a new user "jbloggs":

net user jbloggs MyPassword123 /add /domain