Qhull computes convex hulls, Delaunay triangulations, and halfspaces

http://www.qhull.org

Qhull computes convex hulls, Delaunay triangulations and halfspaces

http://www.qhull.org

The build utility of the Qt project

http://www.trolltech.com/products/qt/index.html

Qt Makefile generator

http://qt-project.org

A command line program to query game servers on the net

http://www.qstat.org/

Multiplatform C++ application framework

http://www.trolltech.com/products/qt/index.html

Qt Documentation

http://qt.nokia.com/products/qt/index.html

Qt meta object compiler

http://qt-project.org

Quake III Arena -- first person shooter (native build)

http://www.idsoftware.com/games/quake/quake3-arena/

Quake III Arena data files

http://www.idsoftware.com/games/quake/quake3-arena/

Test performance of storage devices

Randr extension headers

https://www.freedesktop.org/wiki/Software/xlibs/

File archiver (binary port)

https://www.rarlab.com/

Simple window manager with no fat library dependencies

https://www.nongnu.org/ratpoison/

Distributed, collaborative, spam detection and filtering network

http://razor.sourceforge.net/

Unix incarnation of the plan9 shell

http://tobold.org/article/rc

Checks rc scripts for style and common errors

https://github.com/crees/rclint

RDP client for Windows NT/2000/2003 Terminal Server

http://www.rdesktop.org/

Lexer generator for C, C++ and Go with a focus on generating fast code

https://re2c.org/

Library for editing command lines as they are typed

https://tiswww.case.edu/php/chet/readline/rltop.html

Converts files between character sets and usages

http://www.gnu.org/software/recode/recode.html

RECORD extension headers

http://www.freedesktop.org/wiki/Software/xlibs

RenderProto protocol headers

https://www.freedesktop.org/wiki/Software/xlibs/

Resource extension headers

https://www.freedesktop.org/wiki/Software/xlibs/

A fast redirector and access controller for squid

http://www.bsdnexus.com/retsina/index.htm

Uncompile an rgb color-name database

https://gitlab.freedesktop.org/xorg/app/rgb

Convert .rpm files to cpio format

Restricted Secure SHell only for sftp or/and scp

http://www.pizzashack.org/rssh/index.shtml

Sample implementation of a Remote Start client

Network file distribution/synchronization utility

http://rsync.samba.org/

Kernel module which provides /dev/rtc device support

A set of tools to record, playback and monitor RTPv2 data streams

Low memory usage xterm replacement that supports color

Security Administrator's Integrated Network Tool

http://www.wwdsi.com/saint/

nsupdate utility with the GSS-TSIG support

https://www.isc.org/software/bind

Stand-Alone shell combining many common utilities

http://members.tip.net.au/~dbell/

Scan_ffs recovers lost disklabel

High-speed Dirac codec

http://www.diracvideo.org/

ANSI C version of the SciMark2 benchmark

https://math.nist.gov/scimark2/download_c.html

Build tool alternative to make

https://scons.org/

Tiny shell that only permits scp and sftp

https://github.com/scponly/scponly/wiki

Converts the output of "vidcontrol -p" to PNG

Converts the output of "vidcontrol -p" to text

Multi-screen window manager

http://www.gnu.org/software/screen/

Small and lightweight screen(1) wrapper

https://sourceforge.net/projects/screenie/

Various X related scripts

https://cgit.freedesktop.org/xorg/app/scripts

ScrnSaver extension headers

http://www.freedesktop.org/wiki/Software/xlibs

Cross-platform multimedia development API

https://www.libsdl.org/

SDL graphics drawing primitives and other support functions

http://www.ferzkopp.net/Software/SDL_gfx-2.0/

Sample multi-channel audio mixer library

https://www.libsdl.org/projects/SDL_mixer/index.html