GPL-2.0-only — independent software & tools
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aamath
Renders mathematical expressions as ASCII art
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abricate
Find antimicrobial resistance and virulence genes in contigs
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afuse
Automounting file system implemented in userspace with FUSE
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analog
Logfile analyzer
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angband
Dungeon exploration game
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aoeui
Lightweight text editor optimized for Dvorak and QWERTY keyboards
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apcupsd
Daemon for controlling APC UPSes
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apophenia
C library for statistical and scientific computing
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arcade-learning-environment
Platform for AI research
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arpoison
UNIX arp cache update utility
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asciitex
Generate ASCII-art representations of mathematical equations
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aview
ASCII-art image browser and animation viewer
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batt
Control and limit battery charging on Apple Silicon MacBooks
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beakerlib
Shell-level integration testing library
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beancount
Double-entry accounting tool that works on plain text files
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beanquery
Customizable lightweight SQL query tool
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bgpdump
C library for analyzing MRT/Zebra/Quagga dump files
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bibtex2html
BibTeX to HTML converter
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bibutils
Bibliography conversion utilities
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bic
C interpreter and API explorer
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blazegraph
Graph database supporting RDF data model, Sesame, and Blueprint APIs
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bonnie++
Benchmark suite for file systems and hard drives
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bookloupe
List common formatting errors in a Project Gutenberg candidate file
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bpm-tools
Detect tempo of audio files using beats-per-minute (BPM)
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btdu
Sampling disk usage profiler for btrfs
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ccextractor
Tool for extracting closed captions from video files
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cgit
Hyperfast web frontend for Git repositories written in C
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chrony
Versatile implementation of the Network Time Protocol (NTP)
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cntlm
NTLM authentication proxy with tunneling
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coccinelle
Program matching and transformation engine for C code
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codespell
Fix common misspellings in source code and text files
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cpufetch
CPU architecture fetching tool
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crosstool-ng
Tool for building toolchains
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crunch
Wordlist generator
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cuetools
Utilities for .cue and .toc files
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curlftpfs
Filesystem for accessing FTP hosts based on FUSE and libcurl
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daemonlogger
Network packet logger and soft tap daemon
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daq
Network intrusion prevention and detection system
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dex
Dextrous text editor
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distribution
Create ASCII graphical histograms in the terminal
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dnsdist
Highly DNS-, DoS- and abuse-aware loadbalancer
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doxygen
Generate documentation for several programming languages
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dpcmd
Linux software for DediProg SF100/SF600
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dsda-doom
Fork of prboom+ with a focus on speedrunning
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duply
Frontend to the duplicity backup system
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dupseek
Interactive program to find and remove duplicate files
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dvd+rw-tools
DVD+-RW/R tools
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dynamips
Cisco 7200/3600/3725/3745/2600/1700 Router Emulator
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e2tools
Utilities to read, write, and manipulate files in ext2/3/4 filesystems
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easy-rsa
CLI utility to build and manage a PKI CA
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eiffelstudio
Development environment for the Eiffel language
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ekg2
Multiplatform, multiprotocol, plugin-based instant messenger
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enca
Charset analyzer and converter
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epstool
Edit preview images and fix bounding boxes in EPS files
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exact-image
Image processing library
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ext4fuse
Read-only implementation of ext4 for FUSE
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ezstream
Client for Icecast streaming servers
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far2l-tty
Unix TTY port of FAR Manager v2 (with NetRocks support)
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fastnetmon
DDoS detection tool with sFlow, Netflow, IPFIX and port mirror support
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felinks
Text mode browser and Gemini, NNTP, FTP, Gopher, Finger, and BitTorrent client