$ sudo apt-get update
$ sudo apt-get install ltsp-cluster-accountmanager 

ltsp-cluster-accountmanager is installed in your system.

Make ensure the ltsp-cluster-accountmanager package were installed using the commands given below,

$ sudo dpkg-query -l | grep ltsp-cluster-accountmanager *

You will get with ltsp-cluster-accountmanager package name, version, architecture and description in a table

ltsp-cluster-accountmanager package basic information: