Install xbase-clients by entering the following commands in the terminal:
sudo apt update sudo apt install xbase-clients
Description:
miscellaneous X clients - metapackage
An X client is a program that interfaces with an X server (almost always via the X libraries), and thus with some input and output hardware like a graphics card, monitor, keyboard, and pointing device (such as a mouse). . This package provides a miscellaneous assortment of several dozen X clients that ship with the X Window System. . This package is provided for transition from earlier Debian releases, the programs formerly in xutils and xbase-clients having been split out in smaller packages.
Homepage: http://www.x.org/
Version: 1:7.7+19ubuntu7
Section: universe/x11