x11-utils

About x11-utils

From Debian's package description

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 X utilities that ship with the X Window System, including:

• appres, editres, listres and viewres, which query the X resource database;
• xdpyinfo, a display information utility for X;
• xdriinfo, query configuration information of DRI drivers;
• xev, an X event displayer;
• xfd, a tool that displays all the glyphs in a given X font;
• xfontsel, a tool for browsing and selecting X fonts;
• xkill, a tool for terminating misbehaving X clients;
• xlsatoms, which lists interned atoms defined on an X server;
• xlsclients, which lists client applications running on an X display;
• xlsfonts, a server font list displayer;
• xmessage, a tool to display message or dialog boxes;
• xprop, a property displayer for X;
• xvinfo, an Xv extension information utility for X;
• xwininfo, a window information utility for X;

The editres and viewres programs use bitmap images provided by the xbitmaps package.

From Debian's description of the x11-utils package, under that package's license.