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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barman-cloud-backup
Backup a PostgreSQL instance and stores it in the Cloud
barman-cloud-check-wal-archive
Check a WAL archive destination for a new PostgreSQL cluster
barman-cloud-restore
Restore a PostgreSQL backup from the Cloud
barman-cloud-wal-archive
Archive PostgreSQL WAL files in the Cloud using archive_command
barman-cloud-wal-restore
Restore PostgreSQL WAL files from the Cloud using restore_command
barman-wal-archive
archive_command based on Barman's put-wal
barman-wal-restore
'restore_command' based on Barman's get-wal
barman
Backup and Recovery Manager for PostgreSQL
barnowl
BarnOwl - tty‐based zephyr client
barrierc
Barrier Keyboard/Mouse Client
barriers
Barrier Keyboard/Mouse Server
barrnap
rapid ribosomal RNA prediction
bart
Berkeley Advanced Reconstruction Toolbox
base16
basez - base 16/32/64 encode/decode data to standard output
base16384
Encode binary files to printable utf16be
base32
base32 encode/decode data and print to standard output
base32hex
basez - base 16/32/64 encode/decode data to standard output
base32plain
basez - base 16/32/64 encode/decode data to standard output
base58
Base58 encode or decode
base64
base64 encode/decode data and print to standard output
base64mime
basez - base 16/32/64 encode/decode data to standard output
base64pem
basez - base 16/32/64 encode/decode data to standard output
base64plain
basez - base 16/32/64 encode/decode data to standard output
base64url
basez - base 16/32/64 encode/decode data to standard output
base_evolve
Produce a synthetic alignment by simulating evolution according to
basename
strip directory and suffix from filenames
basename
strip file name affixes
basename
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux
basenc
Encode/decode data and print to standard output
basepods
print out pod paths for the standard perl manpages
basex
XML database system and XPath/XQuery processor (command line mode)
basexclient
XML database system and XPath/XQuery processor (client mode)
basexgui
XML database system and XPath/XQuery processor (graphical mode)
basexserver
XML database system and XPath/XQuery processor (server mode)
basez
base 16/32/64 encode/decode data to standard output
bash-static
bash - GNU Bourne-Again SHell
bash
GNU Bourne-Again SHell
bashbug
report a bug in bash
basic256
BASIC256 - Educational BASIC programming environment for children
basictopvf
pvf tools - utilities to convert various sound formats  
basis
plot a finite element basis (rheolef-7.2)
basket
Note-taking application
basl2c
converts a BASL (BAtch Scheduling Language) code into a C scheduler code
bat
Bacula Administration Tool Console
bat2gts
takes a bathymetry file (three columns: longitude, latitude (degree), depth (meters)) and generates a GTS depth file for the given domain.  
batch
at, batch, atq, atrm - queue, examine, or delete jobs for later execution
batch
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux
batmon
Battery monitor for GNUstep
bats
Bash Automated Testing System
battery-graph
Show a graph of the battery charge
battery-log
Extract battery statistics
bazel-4
bazel, bazel-4 - tool to automate software builds and tests
bazel
bazel, bazel-4 - tool to automate software builds and tests
bbAnalyze
bbFilter
this is a part of mauveAligner package
bbcnews
elvi - surfraw(1) search tools  
bbduk.sh
Filters, trims, or masks reads with kmer matches to an artifact/contaminant file
bbe
binary block editor
bbl2bib
bbl2bib.pl - convert thebibliography environment to a bib file
bbmail
mailbox flag for X
bbmap.sh
bbmap - Fast and accurate splice-aware read aligner
bbnorm.sh
Kmer-based error-correction and normalization tool
bbox
prints out the bounding box of a rawppm or rawpbm image
bboxx
The program outputs the page number and the Bounding Box parameters for every page in the file filename, by postprocessing the output from the gs bbox device
bbpager
pager for the Blackbox window manager  
bbtime
Display the time in a small blackbox style window
bc
An arbitrary precision calculator language
bc
arbitrary-precision arithmetic language
bc
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux
bcal
Storage expression calculator
bcalm
de Bruijn compaction in low memory
bcat
speech-tools - Programs for audio and speech manipulation
bcbio_nextgen
bcc
Bruce's C compiler
bcftools
utilities for variant calling and manipulating VCFs and BCFs
bchunk
CD image format conversion from bin/cue to iso/cdr
bcomps
biconnected components filter for graphs
bcp
extract subsets of Boost
bcpp
make C++ beautifier
bcrontab
Manage users crontab files
bct_dump
tegra BCT disassembly tool
bd
quickly go back to a specific parent directory in bash
bd_info
show BD disc info
bd_list_titles
List the titles and title info of a BD disc
bd_splice
bdsplice - Find and splice BD disc clips together into destination file
bdbvu
simple GUI tool to browse Berkeley DB databases
bdebstrap
YAML config based multi-mirror Debian chroot creation tool
bdeinfo
determines information about a BitLocker Drive Encrypted (BDE) volume
bdemount
mounts a BitLocker Drive Encryption (BDE) encrypted volume
bdf2gdfont
bdf2gdfont.pl - Convert X11 "BDF" fonts into a loadable font format for GD
bdf2psf
convert a BDF font to PSF format for the Linux console  
bdf2sfd
BDF to SFD converter
bdfimplode
Convert a BDF font into GNU Unifont .hex format
bdfresize
Resize BDF Format Font
bdftobogl
bogl/bterm font convertor
bdftogd
libgd-tools - programs to convert between gd and other graphics formats
bdftopcf
convert X font from Bitmap Distribution Format to Portable Compiled Format
bdftruncate
generate truncated BDF font from ISO 10646-1-encoded BDF font
bdii-update
the bdii update process
bdump
visualization of biniou data