Section 1 of the manual describes user commands and tools, for example, file manipulation tools, shells, compilers, web browsers, file and image viewers and editors, and so on.

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amptone
Qualcomm Atheros Thunderbolt/Lightning Tone Map Dump Utility  
amptool
Qualcomm Atheros AR7x00 Powerline Device Manager  
ampwait
Qualcomm Atheros Powerline Procrastinator  
amqp-consume
Consume messages from a queue on an AMQP server  
amqp-declare-queue
Declare (create or assert the existence of) a queue on an AMQP server  
amqp-delete-queue
Delete a queue from an AMQP server  
amqp-get
Get a message from a queue on an AMQP server  
amqp-publish
Publish a message on an AMQP server  
amr
automake replacement
ams
A software synthesizer modeled after modular patching synthesizers
amstex
structured text formatting and typesetting
amsynth
program included in the DeMuDi distribution
amtog
Read graphs in matrix format
amtool
Tooling for the Prometheus alert manager
amtterm
Intel AMT serial-over-lan (sol) client
amttool
remotely control Intel AMT managed machines
amule-emc
list links inside emulecollection files
amule
the all-platform eMule p2p client
amulecmd
Console-based program to control aMule
amuled
the all-platform eMule p2p client - daemonized version
amulegui
aMule control program with GUI
amuleweb
aMule web server
an-fitstopnm
Convert FITS images into ugly PNM images
an-pnmtofits
Convert PNM file to FITS
analizo-files-graph
dependency graph generator among files
analizo-graph
dependency graph generator
analizo-help
displays the help
analizo-metrics-batch
processes several source code directories in batch
analizo-metrics-history
processes a Git repository collection metrics
analizo-metrics
analizo's metric reporting tool
analizo-tree-evolution
watch the evolution of the source code
analizo
multi-language source code analysis toolkit
analog
web server logfile analyser
analyseplugin
analyse plugin syntax
analyze-dmk
empty-dmk, dsk2dmk, svi2dmk, svicpm2dmk, der2dmk, combine-dmk, analyze-dmk - Tools for handling DMK disk image files
analyze-pat.pl
- analyzes a pattern
anbox
run Android in a box  
ancient
decompression routines for ancient formats
andi
estimates evolutionary distances
android-file-transfer
reliable MTP client with minimalistic UI
androiddump
Provide interfaces to capture from Android devices
andump
ACR/NEMA DICOM PS3 ... Describe ACR-NEMA file content
animate-im6.q16
animate - animates an image or image sequence on any X server
animate-im6.q16hdri
animate - animates an image or image sequence on any X server
animate
gm - command-line utility to create, edit, compare, convert, or display images  
animate
animate a sequence of geomview files
anjuta-launcher
GNOME Integrated Development Environment anjuta-launcher normally is not called directly by the user but invoked by anjuta
anjuta
GNOME Integrated Development Environment
anlogin
clogin - Cisco login script
ann2fig
Dump ANN tree structure in Fig format
ann_sample
Sample program for the ANN library
ann_test
A test and evaluation program for the ANN library
annex-to-annex-dropunused
drop old hardlinks migrated by annex-to-annex
annex-to-annex-reinject
use 'git annex reinject' to redo annex-to-annex
annex-to-annex
use hardlinks to migrate files between git annex repos
anno
annotate messages
anno
annotate nmh messages
annotate-output
annotate program output with time and stream
annotate
libgd-tools - programs to convert between gd and other graphics formats
annotationViewer
tool for viewing analysis results that have been saved
anomaly
anomalous data detection  
anonip
a tool to anonymize IPv4 and IPv6 addresses in existing or via pipe created logfiles
anorack
“a” vs “an” checker
ansi2html
ansi to HTML converter
ansi2txt
ansi to plain text converter
ansible-community
show version information
ansible-config
View ansible configuration
ansible-console
REPL console for executing Ansible tasks
ansible-doc
plugin documentation tool
ansible-galaxy
Perform various Role and Collection related operations
ansible-inventory
None
ansible-lint
lint tool for Ansible playbooks
ansible-playbook
Runs Ansible playbooks, executing the defined tasks on the targeted hosts
ansible-pull
pulls playbooks from a VCS repo and executes them for the local host
ansible-vault
encryption/decryption utility for Ansible data files
ansible
Define and run a single task 'playbook' against a set of hosts
ansifilter
Ansifilter - ANSI escape code processor and converter  
ansilove
ANSI / ASCII art to PNG converter
ansiweather
weather in terminal, with ANSI colors and Unicode symbols
ansysToFoam
part of OpenFOAM (The Open Source CFD Toolbox)
ant
a Java based make tool.  
antennavis
Antenna Radiation Pattern Visualization Software
antigenic
Finds antigenic sites in proteins
antimicrox
AntiMicroX - map keyboard keys and mouse controls to a gamepad
antimony
CAD from a parallel universe
antiword
show the text and images of MS Word documents
antlr
ANother Tool for Language Recognition
antlr3
ANTLR - ANother Tool for Language Recognition, version 3
antlr4
ANTLR - ANother Tool for Language Recognition, version 4
antpm-downloader
console based ANT-FS information retrieval client for Garmin GPS products
antpm-fit2gpx
console based FIT to GPX converter
antpm-garmin-ant-downloader
gant - console based ANT+ information retrieval client for Garmin GPS products
antpm-usbmon2ant
Tool to convert ANT USB traffic traces
anu-nq
The nq command line interface
any2djvu
Convert .ps/.ps.gz/.pdf to .djvu  
anymeal
recipe management software
anypaper
front-end for wallpapersetter
anyremote
control PC with Bluetooth/Wi-Fi cell phone  
anytooff
filter to convert a (set of) geomview data file(s) containing any geomview primitives into a single polylist
anytopnm
convert an arbitrary type of image file to PBM, PGM, or PPM