accountsservice software package provides query and manipulate user account information, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install accountsservice
accountsservice is installed in your system.
Make ensure the accountsservice package were installed using the commands given below,
$ sudo dpkg-query -l | grep accountsservice *
You will get with accountsservice package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Administration Utilities |
| Package | accountsservice |
| Version | 0.6.37-3+b2 [s390x], 0.6.37-3+ |
| Description | query and manipulate user account information |
| Sub Section | admin |