Linux Commands Examples

A great documentation place for Linux commands

use wildcards (*,?): example, bz* will match bzless and bzmore


dash - command interpreter (shell)
date - print or set the system date and time
dbilogstrip - filter to normalize DBI trace logs for diff’ing
dbiprof - command-line client for DBI::ProfileData
dbiproxy - A proxy server for the DBD::Proxy driver
dbmmanage - Manage user authentication files in DBM format
dbus-cleanup-sockets - clean up leftover sockets in a directory
dbus-daemon - Message bus daemon
dbus-launch - Utility to start a message bus from a shell script
dbus-monitor - debug probe to print message bus messages
dbus-send - Send a message to a message bus
dbus-uuidgen - Utility to generate UUIDs
dc - an arbitrary precision calculator
dconf - Simple tool for manipulating a dconf database
dconf-editor - Graphical editor for dconf
dd - convert and copy a file
ddate - convert Gregorian dates to Discordian dates
deallocvt - deallocate unused virtual consoles
debconf - using program
debconf-apt-progress - install packages using debconf to display a progress bar
debconf-communicate - communicate with debconf
debconf-copydb - copy a debconf database
debconf-escape - helper when working with debconf’s escape capability
debconf-gettextize - extract translations of debconf templates into PO files
debconf-set-selections - insert new default values into the debconf database
debconf-show - query the debconf database
debconf-updatepo - update PO files about debconf templates
debugfs - ext2/ext3/ext4 file system debugger
dehtmldiff - get usable diff from an HTML page
deja-dup - manual page for deja-dup 26.0
deja-dup-preferences - manual page for deja-dup-preferences 26.0
delgroup - remove a user or group from the system
delpart - simple wrapper around the "del partition" ioctl
deluser - remove a user or group from the system
depmod - Generate modules.dep and map files.
desktop-file-edit - Installation and edition of desktop files
desktop-file-install - Installation and edition of desktop files
desktop-file-validate - Validate desktop entry files
detex - a filter to strip TeX commands from a .tex file.
devdump - , isoinfo, isovfy, isodump Utility programs for dumping and verifying iso9660 images.
devnag - Devanagari for TeX preprocessor
df - report file system disk space usage
dfutool - Device Firmware Upgrade utility
dgawk - pattern scanning and processing language
dh - debhelper command sequencer
dhclient - Dynamic Host Configuration Protocol Client
dhclient-script - DHCP client network configuration script
dh_apparmor - reload AppArmor profile and create local include
dh_auto_build - automatically builds a package
dh_auto_clean - automatically cleans up after a build
dh_auto_configure - automatically configure a package prior to building
dh_auto_install - automatically runs make install or similar
dh_auto_test - automatically runs a package’s test suites
dh_bash-completion - install bash completions for package
dh_bugfiles - install bug reporting customization files into package build directories
dh_builddeb - build Debian binary packages
dh_clean - clean up package build directories
dh_compress - compress files and fix symlinks in package build directories
dh_desktop - deprecated no-op
dh_dkms - correctly handle DKMS usage by a kernel module package
dh_fixperms - fix permissions of files in package build directories
dh_gconf - install GConf defaults files and register schemas
dh_gencontrol - generate and install control file
dh_icons - Update Freedesktop icon caches
dh_install - install files into package build directories
dh_installcatalogs - install and register SGML Catalogs
dh_installchangelogs - install changelogs into package build directories
dh_installcron - install cron scripts into etc/cron.*
dh_installdeb - install files into the DEBIAN directory
dh_installdebconf - install files used by debconf in package build directories
dh_installdirs - create subdirectories in package build directories
dh_installdocs - install documentation into package build directories
dh_installemacsen - register an Emacs add on package
dh_installifupdown - install if-up and if-down hooks
dh_installinfo - install info files
dh_installinit - install init scripts and/or upstart jobs into package build directories
dh_installlogcheck - install logcheck rulefiles into etc/logcheck/
dh_installlogrotate - install logrotate config files
dh_installman - install man pages into package build directories
dh_installmanpages - old-style man page installer (deprecated)
dh_installmenu - install Debian menu files into package build directories
dh_installmime - install mime files into package build directories
dh_installmodules - register modules with modutils
dh_installpam - install pam support files
dh_installppp - install ppp ip-up and ip-down files
dh_installtex - register Type 1 fonts, hyphenation patterns, or formats with TeX
dh_installudev - install udev rules files
dh_installwm - register a window manager
dh_installxfonts - register X fonts
dh_installxmlcatalogs - install and register XML catalog files
dh_link - create symlinks in package build directories
dh_lintian - install lintian override files into package build directories
dh_listpackages - list binary packages debhelper will act on
dh_makeshlibs - automatically create shlibs file and call dpkg-gensymbols
dh_md5sums - generate DEBIAN/md5sums file
dh_movefiles - move files out of debian/tmp into subpackages
dh_numpy - adds Numpy depends to python:Depends substvar
dh_perl - calculates Perl dependencies and cleans up after MakeMaker
dh_perl_dbi - add dependencies required for DBI modules
dh_prep - perform cleanups in preparation for building a binary package
dh_pysupport - use the python-support framework to handle Python modules
dh_python - calculates Python dependencies and adds postinst and prerm Python scripts (deprecated)
dh_python2 - calculates Python dependencies, adds maintainer scripts to byte compile files, etc.
dh_python3 - calculates Python dependencies, adds maintainer scripts to byte compile files, etc.
dh_scrollkeeper - deprecated no-op
dh_shlibdeps - calculate shared library dependencies
dh_strip - strip executables, shared libraries, and some static libraries
dh_suidregister - suid registration program (deprecated)
dh_testdir - test directory before building Debian package
dh_testroot - ensure that a package is built as root
dh_ucf - register configuration files with ucf
dh_undocumented - undocumented.7 symlink program (deprecated no-op)
dh_usrlocal - migrate usr/local directories to maintainer scripts
dia - a diagram drawing program
dialog - display dialog boxes from shell scripts
diff - compare files line by line
diff3 - compare three files line by line
diffstat - make histogram from diff-output
dig - DNS lookup utility
dir - list directory contents
dircolors - color setup for ls
directomatic - Universal print filter/RIP wrapper
dirname - strip last component from file name
dirsplit - splits directory into multiple with equal size
disdvi - ’disassemble’ a (p)TeX or XeTeX DVI file
display - displays an image or image sequence on any X server.
display.im6 - displays an image or image sequence on any X server.
djpeg - decompress a JPEG file to an image file
dkms - Dynamic Kernel Module Support
dmesg - print or control the kernel ring buffer
dmidecode - DMI table decoder
dmsetup - low level logical volume management
dnsdomainname - show the system’s DNS domain name
dnsmasq - A lightweight DHCP and caching DNS server.
do-release-upgrade - upgrade operating system to latest release
domainname - show the system’s DNS domain name
dosfsck - check and repair MS-DOS filesystems
dosfslabel - set or get MS-DOS filesystem label
dotlockfile - Utility to manage lockfiles
dpkg - package manager for Debian
dpkg-architecture - set and determine the architecture for package building
dpkg-buildflags - returns build flags to use during package build
dpkg-buildpackage - build binary or source packages from sources
dpkg-checkbuilddeps - check build dependencies and conflicts
dpkg-deb - Debian package archive (.deb) manipulation tool
dpkg-distaddfile - add entries to debian/files
dpkg-divert - override a package’s version of a file
dpkg-genchanges - generate Debian .changes files
dpkg-gencontrol - generate Debian control files
dpkg-gensymbols - generate symbols files (shared library dependency information)
dpkg-maintscript-helper - works around known dpkg limitations in maintainer scripts
dpkg-mergechangelogs - 3-way merge of debian/changelog files
dpkg-name - rename Debian packages to full package names
dpkg-parsechangelog - parse Debian changelog files
dpkg-preconfigure - let packages ask questions prior to their installation
dpkg-query - a tool to query the dpkg database
dpkg-reconfigure - reconfigure an already installed package
dpkg-scanpackages - create Packages index files
dpkg-scansources - create Sources index files
dpkg-shlibdeps - generate shared library substvar dependencies
dpkg-source - Debian source package (.dsc) manipulation tool
dpkg-split - Debian package archive split/join tool
dpkg-statoverride - override ownership and mode of files
dpkg-trigger - a package trigger utility
dpkg-vendor - queries information about distribution vendors
dprofpp - display perl profile data
dt2dv - convert a DTL text representation of a TeX DVI file to a binary DVI file
du - estimate file space usage
dumpe2fs - dump ext2/ext3/ext4 filesystem information
dumpkeys - dump keyboard translation tables
duplicity - Encrypted incremental backup to local or remote storage.
dv2dt - convert a binary TeX DVI file to DTL text representation
dvd+rw-booktype - format DVD+-RW/-RAM disk with a logical format
dvd+rw-format - format DVD+-RW/-RAM disk
dvd+rw-mediainfo - display information about dvd drive and disk
dvd-ram-control - checks features of DVD-RAM discs
dvdrip - GUI for copying DVDs
dvdxchap - Extract chapter information from DVDs
dvi2fax - convert a TeX DVI file to G3 fax format
dvi2tty - preview a TeX DVI-file on an ordinary ascii terminal
dvibook - rearrange pages in DVI file into signatures
dviconcat - concatenate DVI files
dvicopy - produce modified copy of DVI file
dvihp - convert a TeX DVI file to Hewlett-Packard PCL
dvilj - convert a TeX DVI file to PCL, for HP LaserJet printers
dvilj2p - , dvilj convert a TeX DVI file to PCL, for HP LaserJet printers
dvilj4 - l, dvilj2p, dvilj convert a TeX DVI file to PCL, for HP LaserJet printers
dvilj4l - , dvilj2p, dvilj convert a TeX DVI file to PCL, for HP LaserJet printers
dvilj6 - dvilj4, dvilj4l, dvilj2p, dvilj - convert a TeX DVI file to PCL, for HP LaserJet printers
dvipdf - Convert TeX DVI file to PDF using ghostscript and dvips
dvipdfm - produce PDF files directly from DVI files
dvipdft - create thumbnail images for use with dvipdfm
dvipos - compute positions in a DVI file
dvips - convert a TeX DVI file to PostScript
dvired - print dvi-files
dviselect - extract pages from DVI files
dvisvgm - converts DVI files to the XML-based SVG format
dvitodvi - rearrange pages in a DVI file
dvitomp - convert a TeX DVI file to a MetaPost MPXFILE
dvitype - translate a dvi file for humans

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