GNU Manuals Online


This table lists official GNU packages with links to their primary documentation, where available. When a package has several associated manuals, they are all listed. If a package has no specific manual online, the link just goes to the package's home page (which is also linked to explicitly).

Many packages could be listed in any of several categories, but for the table here just one has to be chosen, usually following the Free Software Directory.

Bug reports: for any discussion about specific manuals, please contact the package maintainers. For discussion about this page in particular (for example, if you are a GNU maintainer and want to correct or discuss your entry), contact <[email protected]>.

More GNU Project documentation.

Archiving  

Cpio
Manage cpio and tar file archives. [cpio home]
Gzip
General file (de)compression (using lzw). [gzip home]
Paxutils
Manage cpio, tar, and pax file archives. [paxutils home]
Sharutils
Archives in shell scripts, uuencode/uudecode. [sharutils home]
Tar
Managing tar archives. [tar home]
Xorriso
Create, manipulate, burn ISO-9660 filesystems. [xorriso home]

Audio  

Ccd2cue
CCD to CUE sheet conversion. [ccd2cue home]
EMMS
Emacs Multimedia System. [emms home]
Gmediaserver
UPnP compatible media server. [gmediaserver home]
GNUfm
Social music explorations. [gnufm home]
GNUmp3d
Server for streaming audio files. [gnump3d home]
GNUpod
Manage portable audio device. [gnupod home]
Radio
Software radio implementations. [gnuradio home]
GNUsound
Multi-track sound editor for GNOME. [gnusound home]
Guile-SDL
Guile interface for SDL (Simple DirectMedia Layer). [guile-sdl home]
Libcdio  (cd-text)
CD Input and Control library. [libcdio home]
Libextractor
Library to extract meta-data from media files. [libextractor home]

Business and productivity  

Barcode
Convert text strings to printed bars in various standards. [barcode home]
BPEL2oWFN
Translating web service in BPEL to Open Workflow Nets. [bpel2owfn home]
Foliot
An application for tracking time spent on projects. [foliot home]
Gcal
Calculating and printing a wide variety of calendars. [gcal home]
GnuCash
Personal and small business financial accounting software. [gnucash home]
Gretl
Statistical analysis of economic data (econometrics). [gretl home]
Pem
Personal expenses manager. [pem home]
Taler
Electronic payments for a liberal society. [taler home]

Database  

Ferret
Entity/relationship based data modeler. [ferret home]
Gdbm
Hash library of database functions compatible with traditional dbm. [gdbm home]
Guile-dbi
Guile database abstraction layer. [guile-dbi home]
Gurgle
GNU Report Generator Language. [gurgle home]
Libdbh
Advanced library for disk-based hash tables. [libdbh home]
Metaexchange
Manipulate metadata from OAI-PMH and Z39.50. [metaexchange home]
Recutils
Manipulate plain text files as databases. [recutils home]
Sqltutor
Interactively learn SQL by example. [sqltutor home]

Dictionaries  

Dico
Implementation of DICT server (RFC 2229). [dico home]
Gcide
GNU Collaborative International Dictionary of English. [gcide home]
Vera
List of acronyms. [vera home]

Documentation translation  

GNUjdoc
Japanese translations of GNU documents. [gnujdoc home]
GNUnited Nations  (gnun  web-trans)
Build system for www.gnu.org translations. [gnun home]
Trans-coord
Organizational infrastructure for translating www.gnu.org. [trans-coord home]

Editors  

Emacs  (auth  autotype  bovine  calc  ccmode  cl  dbus  dired-x  ebrowse  ede  ediff  edt  eglot  eieio  elisp  emacs-gnutls  emacs-mime  emacs  epa  erc  ert  eshell  eudc  eww  flymake  forms  gnus  htmlfontify  idlwave  ido  info  mairix-el  message  mh-e  newsticker  nxml-mode  octave-mode  org  pcl-cvs  pgg  rcirc  reftex  remember  sasl  sc  semantic  ses  sieve  smtpmail  speedbar  srecode  todo-mode  tramp  url  use-package  vhdl-mode  vip  viper  widget  wisent  woman)
The extensible, customizable, self-documenting text editor.
Available in print: Emacs Reference Cards, GNU Emacs Manual. [emacs home]
Moe
Modeless, multiple-buffer, user-friendly 8-bit text editor. [moe home]
Nano
Small, user-friendly console text editor. [nano home]
Readline  (history  rluserman)
Edit command lines while typing, with history support. [readline home]
Zile
Zile is lossy Emacs, a lightweight Emacs clone. [zile home]

Education  

Dr. Geo
Interactive geometry software. [dr-geo home]
FisicaLab
Educational application for solving physics problems. [fisicalab home]
GCompris
Educational games for small children. [gcompris home]
Ggradebook
GNOME application to track students' grades for teachers. [ggradebook home]
Glean
extensible quizzing and tutorial for self-study. [glean home]
GNUschool
Web application for educators, students, and school administrators. [gnuschool home]
Gtypist
Typing tutor. [gtypist home]
Ignuit
Memorization aid based on Leitner flashcards. [ignuit home]
Java Training Wheels
A simplified Java environment for learning programming. [jtw home]
MIX Development Kit
Virtual development environment for Knuth's MIX.
Available in print: GNU MDK. [mdk home]

Email  

Anubis
SMTP message submission daemon. [anubis home]
GNUbiff
Mail notification program. [gnubiff home]
Mailman
Mailing list manager. [mailman home]
Mailutils
Utilities and library for reading and serving mail. [mailutils home]

Fonts  

Fontopia
A console font editor. [fontopia home]
Fontutils
Scanned image, bitmap, outline font manipulation. [fontutils home]
Free UCS Outline Fonts
Unicode-encoded outline fonts. [freefont home]
Intlfonts
TrueType and BDF fonts covering many scripts. [intlfonts home]
Unifont
Large bitmap font covering Unicode's Basic Multilingual Plane. [unifont home]

GNU organization  

GNU organization  (maintain  standards)
GNU coding standards and maintainer information. [gnustandards home]

Games  

Acm
Multiplayer aerial combat simulation. [acm home]
Ball and Paddle
Ball and paddle game extensible with Guile. [ballandpaddle home]
Chess
Full chess implementation. [chess home]
Dominion
Multi-player world simulation and role-playing game. [dominion home]
FreeDink
Twisted adventures of young pig farmer Dink Smallwood. [freedink home]
Backgammon
Backgammon game. [gnubg home]
GNUbik
3d Rubik's cube game. [gnubik home]
GNUgo
Play the game of Go. [gnugo home]
GNUjump
Game of jumping to the next floor, trying not to fall. [gnujump home]
GNUkart
Racing game. [gnukart home]
Robots
Program a little robot and watch him explore a world. [gnurobots home]
GNUshogi
The game of Shogi (Japanese chess). [gnushogi home]
Leg
Libraries and engines for game programming. [leg home]
Liquid War 6
Multiplayer wargame where your army is a blob of liquid. [liquidwar6 home]
Motti
Multiplayer strategy game. [motti home]
Rpge
Role playing game engine. [rpge home]
Talkfilters
Convert English text to humorous dialects. [talkfilters home]
XBoard
Graphical user interface for chess programs. [xboard home]

Graphics  

3DLDF
3D drawing with MetaPost output. [3dldf home]
Dia
GNU program for drawing diagrams. [dia home]
GIFT
GNU Image Finding Tool, with query by example. [gift home]
GIMP
GNU Image Manipulation Program. [gimp home]
Gpaint
Simple paint program for GNOME. [gpaint home]
Gsegrafix
GNOME application to create scientific and engineering plots. [gsegrafix home]
Guile-opengl
Guile binding for the OpenGL graphics API. [guile-opengl home]
Libxmi
Library for rasterizing 2-d vector graphics. [libxmi home]
Maverik
Support interactive 3d virtual environments. [maverik home]
Panorama
Framework for 3D graphics production. [panorama home]
Plotutils
Plotting utilities and library. [plotutils home]
XaoS
Real-time fractal zoomer. [xaos home]

Health  

GNUmed
Paperless medical practice. [gnumed home]
GNUtrition
Nutrition analysis. [gnutrition home]
Health
Health and hospital information system. [health home]

Interface  

G-Golf
Guile bindings for GObject Introspection. [g-golf home]
GnuDOS
MS-DOS-like file manager, editor, and other tools. [gnudos home]
GNU Interactive Tools
Interactive utilities for file browsing, viewing, and more. [gnuit home]
GNUspeech
Extensible rule-based text-to-speech. [gnuspeech home]
Guile-ncurses
Guile bindings to ncurses. [guile-ncurses home]
Gxmessage
Open popup message window with buttons for return. [gxmessage home]
Inklingreader
Wacom Inkling sketch format conversion and manipulation. [inklingreader home]
Midnight Commander
Graphical file manager. [mc home]
Ncurses
Terminal emulation (termcap, terminfo) library. [ncurses home]
OO-Browser
An interactive object-oriented class browser for Emacs. [oo-browser home]
PowerGuru
Monitoring, logging, and remote control of power generation. [powerguru home]
Remotecontrol
Management of IP-enabled thermostats and other HVAC devices. [remotecontrol home]
Stalkerfs
Desktop search engine for local files, using FUSE. [stalkerfs home]
Termcap
Terminal-independent display support. [termcap home]
Termutils
The tput and tabs utilities for terminal operations. [termutils home]
TRAMP
Transparent Remote Access, Multiple Protocol GNU Emacs package. [tramp home]

Internet applications  

Alive
Autologin and keep-alive daemon. [alive home]
Artanis
Web application framework written in Guile. [artanis home]
Consensus
Coordinate free software social networking projects. [consensus home]
Freetalk
Extensible console-based Jabber client. [freetalk home]
Gratuitous ARP Daemon
Broadcast gratuitous ARP requests for IPMI and more. [garpd home]
Gnash
Flash movie player. [gnash home]
GNUnet
Secure, decentralized, peer-to-peer networking framework. [gnunet home]
GNUzilla
Entirely free browser derived from Mozilla Firefox. [gnuzilla home]
Httptunnel
Bidirectional connection tunnelled inside HTTP requests. [httptunnel home]
Icecat
Entirely free browser derived from Mozilla Firefox. [icecat home]
Inetutils
Basic networking utilities. [inetutils home]
Jwhois
An extended whois client. [jwhois home]
Librejs
Browser add-on that blocks nonfree nontrivial JavaScript. [librejs home]
Lrzsz
Implementation of XMODEM/YMODEM/ZMODEM transfer protocols. [lrzsz home]
MAC Changer
Viewing and manipulating MAC addresses of network interfaces. [macchanger home]
Mediagoblin
Photo and media sharing. [mediagoblin home]
Network
Initiative to encourage development of free network services. [network home]
Pipo
Bulletin board system. [pipo home]
Proxyknife
Customizable multithread proxy hunter. [proxyknife home]
Shishi
Implementation of the Kerberos 5 network security system. [shishi home]
Social
Decentralized social networking server. [social home]
Stump
Secure team-based Usenet moderation program. [stump home]
Websocket4j
WebSocket protocol implementation for Java-HTML5 communication. [websocket4j home]
WebSTUMP
Web interface to STUMP. [webstump home]
Wget
Non-interactive command-line utility for downloading files. [wget home]

Live communications  

Jami
A privacy-respecting communication program. [jami home]

Localization  

FriBiDi
Implementation of the Unicode bidirectional algorithm. [fribidi home]
Gettext
Tools and documentation for translation. [gettext home]

Mathematics  

Aris
Natural deduction first-order logic interface. [aris home]
Bc
Arbitrary precision numeric processing language. [bc home]
C-graph
Visualizing and demonstrating convolution. [c-graph home]
Dap
Statistics and graphics package. [dap home]
Datamash
Scriptable statistics and data calculation. [datamash home]
Dc
Arbitrary precision numeric processing with reverse-polish notation. [dc home]
GMP
Multiple-precision arithmetic library. [gmp home]
GNU Scientific Library
Numerical library for C and C++. [gsl home]
JACAL
Symbolic mathematics system. [jacal home]
Libmatheval
Library for evaluating symbolic expressions. [libmatheval home]
MCSim
Monte Carlo simulation and analysis. [mcsim home]
MLI
Logical proof program. [metalogic-inference home]
MPC
C library for arbitrary precision complex arithmetic. [mpc home]
Mpfr
C library for arbitrary precision floating-point arithmetic. [mpfr home]
Mpria
C library for arbitrary precision rational arithmetic. [mpria home]
Octave
High-level language for numerical computation. [octave home]
PSPP
Statistical analysis. [pspp home]
R
Environment for statistical computing and graphics. [r home]

Music  

Cursynth
Polyphonic and MIDI subtractive music synthesizer using curses. [cursynth home]
Denemo
Graphical music notation, front-end to GNU Lilypond. [denemo home]
GTick
Customizable metronome application. [gtick home]
Lilypond
Music typesetting. [lilypond home]
Psychosynth
Interactive software synthesizer. [psychosynth home]
Solfege
Ear training. [solfege home]

Printing  

a2ps
Any file to PostScript, including pretty-printing. [a2ps home]
Enscript
Generating PostScript, including pretty-printing. [enscript home]
GNU Ghostscript
PostScript and PDF interpreter. [ghostscript home]
GNUspool
Spooling system with a variety of interfaces. [gnuspool home]
Gv
PostScript and PDF viewer using Ghostscript as a back-end. [gv home]
Hp2xx
Convert HP-GL format graphics to other vector and bitmap formats. [hp2xx home]
Trueprint
Pretty-print C sources and other plain text to PostScript. [trueprint home]

Science  

Archimedes
Semiconductor device simulator. [archimedes home]
Electric
Electrical CAD system. [electric home]
Gama
Adjustment of geodetic networks. [gama home]
GnuAE
Designing alternate energy systems. [gnuae home]
Gnuastro
Astronomy utilities. [gnuastro home]
GNUcap
Mixed analog and digital circuit simulator. [gnucap home]
Goptical
C++ optical design and simulation library. [goptical home]
Libredwg
C library to handle DWG (CAD-related) files. [libredwg home]
Lims
Scientific laboratory information management system. [lims home]
Melting
Temperature computations for a nucleic acid duplex. [melting home]
Nano-archimedes
Simulation of quantum systems using the Wigner Monte Carlo method. [nano-archimedes home]
Pcb
Design printed circuit board layouts. [pcb home]
Polyxmass
Mass spectrometric data simulations and analyses. [polyxmass home]
SpaceChart
Stargazing in 3D under GNOME. [spacechart home]
Units
Conversion between thousands of scales. [units home]

Security  

Anastasis
Credential backup and recovery protocol and service. [anastasis home]
Crypto
Cryptographic primitives and tools for Java programming. [gnu-crypto home]
GNU-pw-mgr
Retrieve login credentials without recording passwords. [gnu-pw-mgr home]
GnuPG  (assuan  dirmngr  gcrypt  libgcrypt  gnupg  gpgme  ksba)
GNU Privacy Guard. [gnupg home]
GVPE
Secure VPN among multiple nodes over an untrusted network. [gvpe home]
Libtasn1
ASN.1 library. [libtasn1 home]
Lsh
GNU implementation of the Secure Shell (ssh) protocols. [lsh home]
Nettle
C library for low-level cryptographic functionality. [nettle home]
Radius
Authentication and accounting services and daemon. [radius home]
Userv
Daemon to control service access. [userv home]

Software development  

APL
APL interpreter. [apl home]
Autoconf
Create source code configuration scripts. [autoconf home]
Autoconf-archive
Collection of freely reusable Autoconf macros. [autoconf-archive home]
AutoGen
Automated program generator. [autogen home]
Automake
Making GNU standards-compliant Makefiles. [automake home]
Bash
The GNU Bourne-Again SHell. [bash home]
Binutils  (as  bfd  binutils  gprof  gprofng  ld)
Binary utilities: bfd gas gprof gprofng ld. [binutils home]
Bison
Parser generator.
Available in print: The Bison Manual. [bison home]
GNU C Introduction and Reference
Introduction for learning the GNU C language, and reference for it. [c-intro-and-ref home]
Ccide
Decision table code generator. [ccide home]
Cflow
Create a graph of control flow within a program. [cflow home]
Cim
Simula compiler. [cim home]
CLISP
A Common Lisp implementation. [clisp home]
Complexity
Analyze complexity of C functions. [complexity home]
Config
Ubiquitious config.guess and config.sub scripts. [config home]
Coreutils
Core GNU utilities (file, text, shell). [coreutils home]
Cppi
Indent C preprocessor directives to reflect nesting and more. [cppi home]
DDD
Graphical front-end for GDB and other debuggers. [ddd home]
DejaGnu
GNU software testing framework. [dejagnu home]
DJGPP
Development system and GNU utilities for DOS on x86 hardware. [djgpp home]
EDMA
Object-oriented component-based development environment. [edma home]
Epsilon
A purely functional programming language. [epsilon home]
Findutils
Operating on files matching given criteria. [findutils home]
GCC  (cpp  cppinternals  gcc  gccint  gfc-internals  gfortran  gnat-style  gnat_rm  gnat_ugn  libgomp  libiberty  libstdc++)
GNU Compiler Collection.
Available in print: Using GCC: The GNU Compiler Collection Reference Manual. [gcc home]
GNU Common Lisp
A Common Lisp implementation. [gcl home]
GDB  (gdb  stabs)
The GNU debugger.
Available in print: Debugging with GDB: The GNU Source-Level Debugger. [gdb home]
Gengen
A parameterized-text-generator generator based on a template. [gengen home]
Gengetopt
Create parsers for command line options. [gengetopt home]
Gforth
Forth interpreter. [gforth home]
Global
Cross-environment source code tag system. [global home]
GNAT
Ada compiler. [gnat home]
GNATS
GNU problem report and bug management system. [gnats home]
Gnatsweb
Web interface to GNATS. [gnatsweb home]
GNU C reference manual
Reference manual for the C programming language. [gnu-c-manual home]
GnuCOBOL
A modern COBOL compiler. [gnucobol home]
GNUlib
Source files to share among distributions. [gnulib home]
Mach
Microkernel of the GNU system. [gnumach home]
GNUprologjava  (gnuprologjava)
Implementation of Prolog as a Java library. [gnuprologjava home]
GNUstep
Object-oriented application development environment. [gnustep home]
Gorm
GNUstep interface designer. [gorm home]
Gperf
Perfect hash function generator. [gperf home]
Gprofng-gui
Full-fledged graphical interface to operate gprofng. [gprofng-gui home]
Gprolog
Prolog compiler. [gprolog home]
Greg
Software testing framework. [greg home]
Guile
Scheme implementation intended especially for extensions. [guile home]
Guile-gnome  (atk  clutter-glx  clutter  corba  gconf  gdk  glib  gnome-vfs  gobject  gtk  libglade  libgnome  libgnomecanvas  libgnomeui  pango  pangocairo)
Guile interface for GTK+ programming for GNOME. [guile-gnome home]
Guile-rpc
Pure Scheme implementation for the ONC RPC standard. [guile-rpc home]
Hello
Hello, GNU world: An example GNU package. [hello home]
Hurd
The kernel servers for the GNU operating system. [hurd home]
Idutils
Identifier database utilities. [idutils home]
Indent
Code reformatter. [indent home]
Jitter
A generator for efficient language virtual machines. [jitter home]
Kawa
Java framework and implementation of Scheme, Elisp, and more. [kawa home]
Kopi
Java development environment for interactive database applications. [kopi home]
Liberty Eiffel
Eiffel compiler. [liberty-eiffel home]
Libsigsegv
Library for handling page faults. [libsigsegv home]
Linux-libre
100% free redistribution of a cleaned Linux kernel. [linux-libre home]
Lispintro
Introduction to programming in Emacs Lisp.
Available in print: An Introduction to Emacs Lisp. [lispintro home]
Make
Remake files automatically. [make home]
MARST
Algol-to-C translator. [marst home]
Mig
Mach 3.0 interface generator for the Hurd. [mig home]
MIT/GNU Scheme  (mit-scheme-imail  mit-scheme-ref  sos  mit-scheme-user)
A Scheme implementation with integrated editor and debugger. [mit-scheme home]
Pascal
GNU Pascal compiler. [pascal home]
Patch
Apply differences to originals, with optional backups. [patch home]
Pexec
Execute a command in parallel on multiple hosts. [pexec home]
Pies
Program invocation and execution supervisor. [pies home]
Poke
Editing of arbitrary binary data. [poke home]
Pythonwebkit
W3C DOM bindings to Webkit for use with GTK and more. [pythonwebkit home]
Qexo
Java implementation of XQuery using GNU Kawa. [qexo home]
Rush
Restricted user (login) shell. [rush home]
Sather
An object-oriented language designed to be simple, efficient, safe. [sather home]
SCM
A Scheme implementation. [scm home]
Screen
Full-screen window manager providing multiple terminals. [screen home]
Shmm
Shared memory manager utility. [shmm home]
Shtool
Compilation of utility shell scripts into a shell tool. [shtool home]
SLIB
Portable library for Scheme. [slib home]
Smalltalk  (gst-base  gst-libs  gst)
Smalltalk environment. [smalltalk home]
Superopt
Super-optimizer of given functions. [superopt home]
Swbis
POSIX software packaging utilities. [swbis home]
Teseq
Analyze files with terminal control sequences, for debugging. [teseq home]
Vmgen
Generic virtual machine generation, used by gforth. [vmgen home]
Womb
Repository for GNU work not intended to be separate packages. [womb home]
Xnee
Record, replay and distribute user actions under X11. [xnee home]

Software libraries  

8sync
An asynchronous programming library for Guile. [8sync home]
Adns
Asynchronous DNS client library and utilities. [adns home]
Avl
Binary and balanced search trees. [avl home]
BFD
Binary File Descriptor library. [bfd home]
Cgicc
C++ class library for writing CGI applications. [cgicc home]
Classpath
Core class libraries for Java. [classpath home]
Classpathx
Classpath extensions: javax.* libraries. [classpathx home]
[u]Common C++
[u]Common C++ framework for threaded applications. [commoncpp home]
FreeIPMI
Platform management, including sensor and power monitoring. [freeipmi home]
GLPK
GNU Linear Programming Kit, supporting the MathProg language. [glpk home]
GnuTLS
Transport layer security library. [gnutls home]
Gsasl
Simple Authentication and Security Layer library. [gsasl home]
GNU Slip
SLIP (Symmetric LIst Processor) implementation. [gslip home]
Generic Security Service
Generic Security Service library. [gss home]
Guile-cv
Computer Vision library for Guile. [guile-cv home]
GWL
Workflow language for GNU Guix. [gwl home]
Java-getopt
Java port of GNU getopt. [java-getopt home]
Jel
Java expression library and compiler. [jel home]
GNU C Library
C library. [libc home]
Libffcall
Foreign function calls from interpreters. [libffcall home]
Libgcrypt
Cryptographic function library. [libgcrypt home]
Libiconv
Character set conversion library. [libiconv home]
Libidn
Internationalized string processing library. [libidn home]
Libidn2
Free software implementation of IDNA2008, Punycode, and Unicode TR46. [libidn2 home]
Libjit
Just-in-Time compilation library. [libjit home]
Libmicrohttpd
C library implementing an HTTP 1.1 server. [libmicrohttpd home]
Libtool
Generic shared library support tools. [libtool home]
Libunistring
C library for manipulating Unicode strings. [libunistring home]
Lightning
Library for generating assembly code at runtime. [lightning home]
MemPool
Block allocator library. [mempool home]
Mifluz
Full text indexing library. [mifluz home]
Nana
Library for assertions, logging, performance measurement. [nana home]
oSIP
Library implementing SIP (RFC-3261). [osip home]
Pth
Portable thread library. [pth home]
Quickthreads
Thread library. [quickthreads home]
WB
Disk-based associative array B-tree database library. [wb home]

Spreadsheets  

GNUmeric
Spreadsheet application. [gnumeric home]
Oleo
Spreadsheet for both terminal and graphical interfaces. [oleo home]
Spread Sheet Widget
Gtk+ widget for viewing and manipulating tabular data. [ssw home]

System administration  

Acct
Standard login and process accounting utilities. [acct home]
ddrescue
Data recovery utility. [ddrescue home]
Direvent
Daemon to monitor directories for events such as file removal. [direvent home]
Fdisk
Low-level disk partitioning and formatting. [fdisk home]
GNUbatch
Advanced batch scheduling and job control. [gnubatch home]
GNU Boot
A free BIOS/UEFI replacement. [gnuboot home]
GRUB
GRand Unified Boot loader. [grub home]
GNU Source Release Collection
Install latest official GNU releases from original source. [gsrc home]
Guix
Functional package manager for installed software packages and versions. [guix home]
Mcron
Run jobs at scheduled times. [mcron home]
Mes
Full source bootstrapping for GNU systems. [mes home]
Mtools
Access MS-DOS disks without mounting. [mtools home]
Parallel
Build and execute command lines in parallel. [parallel home]
Parted
Disk partition editor. [parted home]
Rottlog
Log rotation and management. [rottlog home]
Serveez
Framework for implementing IP-based servers. [serveez home]
Shepherd
System service manager. [shepherd home]
Stow
Managing installed software packages. [stow home]
Sysutils
Standard system administration utilities: passwd, chsh, and more. [sysutils home]
Time
Run a command, then display its resource usage. [time home]
UUCP
UUCP protocol implementation. [uucp home]
Which
Find full path of shell commands. [which home]
Xlogmaster
GUI program for monitoring log and other files. [xlogmaster home]

Telephony  

Bayonne
Telephony server. [bayonne home]
ccAudio
Standalone C++ class framework for manipulating audio data. [ccaudio home]
ccRTP
Implementation of RTP (real-time transport protocol). [ccrtp home]
ccScript
C++ class framework for virtual machine execution. [ccscript home]
GnuComm
GNU telecommunications project / GNU Telephony. [gnucomm home]
HaliFAX
Fax support. [halifax home]
Sipwitch
Secure peer-to-peer VoIP server for the SIP protocol. [sipwitch home]

Text creation and manipulation  

Aspell
Spell checker. [aspell home]
AUCTeX
Emacs environment for editing (all flavors of) TeX files. [auctex home]
Bool
Finding text and HTML files that match boolean expressions. [bool home]
Combine
Extensible file matching and filtering. [combine home]
Diction
Identifies wordy and commonly misused phrases. [diction home]
Diffutils
Comparing and merging files. [diffutils home]
Ed
Line-oriented text editor. [ed home]
Gawk  (gawkinet  gawk)
Text scanning and processing language. [gawk home]
Grep
Print lines matching a pattern. [grep home]
Groff
Typesetting from plain text mixed with formatting commands. [groff home]
Help2man
Automatically generate man pages from program --help. [help2man home]
Html-info
HTML-Info viewer and tools. [html-info home]
Hyperbole
Emacs hypertext system via customizable buttons. [hyperbole home]
Less
Paginator for terminals. [less home]
M4
Macro processor. [m4 home]
Miscfiles
Data files for airport codes, zip codes, a dictionary, and more. [miscfiles home]
Ocrad
Optical character recognition based on feature extraction. [ocrad home]
OrgaDoc
Eiffel program to maintain and query documents across machines. [orgadoc home]
Reftex
Emacs support for LaTeX cross-references of all kinds. [reftex home]
Sed
Stream editor. [sed home]
Spell
Spell checking. [spell home]
Src-highlite
Produce a document with syntax highlighting from a source file. [src-highlite home]
TeX for the Impatient
Book on TeX, plain TeX, and Eplain. [teximpatient home]
Texinfo  (info-stnd  texi2any_api  texi2any_internals  texinfo)
The GNU documentation format. [texinfo home]
TeXmacs
Editing platform with special features for scientists. [texmacs home]
UnRTF
Convert Rich Text Format documents to other formats. [unrtf home]
Wdiff
Word difference finder. [wdiff home]

Version control  

Bazaar
Version control system supporting both distributed and centralized workflows. [bazaar home]
CSSC
File-based version control like SCCS. [cssc home]
RCS
Per-file local revision control system. [rcs home]
Vc-dwim
Version-control-agnostic ChangeLog diff and commit tool. [vc-dwim home]

Video  

VCDImager
Authoring, disassembling and analyzing (super and) video CDs. [vcdimager home]

Web authoring  

Easejs
Classical object-oriented framework for JavaScript. [easejs home]
Emacs-muse
Authoring and publishing environment for Emacs. [emacs-muse home]
GNOWSYS
Distributed network-based memory and knowledge management. [gnowsys home]
phpGrabComics
Saves comic strips from the web. [grabcomics home]
Metahtml
Combining HTML and Lisp, specifically designed for Web servers. [metahtml home]
Xmlat
Simple XML for defining and implementing markup languages. [xmlat home]

See info about this list at top.