bsdutils software package provides basic utilities from 4.4BSD-Lite, 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 bsdutils
bsdutils is installed in your system.
Make ensure the bsdutils package were installed using the commands given below,
$ sudo dpkg-query -l | grep bsdutils *
You will get with bsdutils package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Utilities |
| Package | bsdutils |
| Version | 1:2.28.2-1 |
| Description | basic utilities from 4.4BSD-Lite |
| Sub Section | Utils |