The X Window System (aka X11 or X) is the de facto standard when it comes to windowing systems for bitmap displays on UNIX like environments. The Xorg open implementation, has seen the rise of X ubiquity, since its (X11) original inception at MIT in 1984.

Over all these years, many utility programs have been made to aid in the use and management of X. Some more useful than others, most are gems.

One such gem is XScreenSaver, a collection of 200+ screensavers for UNIX-like environments, developed and still actively maintained by the legendary jwz (Jamie Zawinski) since 1992.

The arch meta package xorg-apps provides a great starting point for some of the useful utilities to manage your graphical environment.

package purpose
iceauth ICE authority file utility
luit Filter an arbitrary application and a UTF-8 terminal emulator
mkfontscale Create an index of scalable font files for X
sessreg Register X sessions in system utmp/utmpx databases
setxkbmap Set the keyboard using the X Keyboard Extension
smproxy Allows X11R6 session for ALL clients
x11perf Simple X server performance benchmarker
xauth X.Org authorization settings program
xbacklight RandR-based backlight control application
xcmsdb Color characterisation utility
xclip Clipboard on the CLI
xcursorgen Create an X cursor file from PNG images
xdpyinfo Display information utility for X
xdriinfo Query configuration information of DRI drivers
xev Print contents of X events
xfontsel Lists fonts and picker in XLFD
xgamma Alter a monitor’s gamma correction
xhost Server access control program for X
xinput Small commandline tool to configure devices
xkbcomp X Keyboard description compiler
xkbevd XKB event daemon
xkbutils XKB utility demos
xkill Kill a client by its X resource
xload Graphs CPU load
xlock Lockscreen with optional screensaver
xlogo Draws X Window System logo
xlsatoms List interned atoms defined on server
xlsclients List client applications running on a display
xmodmap Utility for modifying keymaps and button mappings
xpr Print an X window dump from xwd
xprop Property displayer for X
xrandr Primitive command line interface to RandR extension
xrdb X server resource database utility
xrefresh Refresh all or part of an X screen
xset User preference utility for X
xsetroot Set root window background to pattern or color
xvinfo Show video adaptor capabilities
xwd X Window System image dumping utility
xwininfo CLI show info about windows
xwud X Window System image undumping utility
xzoom Magnify, rotate or mirror screen