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{| class="wikitable"
! align="center" | Action
! RPM<br/><small>RHEL, Fedora, CentOS, MandrakeMandriva, SUSE, ...</small>! DEB<br/><small>Debian, Knoppix, Ubuntu, ...</small>! Ebuild<br/><small>Gentooand derivatives (Sabayon, Ututo, Sabayon...)</small>! Pacman<br/><small>Arch Linux</small>
|-
! colspan="45" align="center" | <big>'''Basic queries'''</big>
|-
! List of all installed packages
|| <code>rpm -qa</code>
|| <code>dpkg -l</code>
|| <code>equery list'*'</code>|| <code>pacman -Q</code>
|-
! List of installing installed packages matching ''substr''
|| <code>rpm -qa ''\*substr\*''</code>
|| <code>dpkg -l ''\*substr\*''</code>
|| <code>equery list ''substr''</code>
|| <code>pacman -Q | grep ''substr''</code>
|-
! Basic information about an installed ''package''
|| <code>rpm -qi ''package''</code>
|| <code>dpkg -p s ''package''</code>|| <code>eix ''package''</code>|| <code>pacman -???-Qi ''package''</code>
|-
! List of files in a given ''package''
|| <code>dpkg -L ''package''</code>
|| <code>equery files ''package''</code>
|| <code>pacman -Ql ''package''</code>
|-
! colspan="45" align="center" | <big>'''Advanced queries'''</big>
|-
! Which package a ''file'' belongs to?
|| <code>dpkg -S ''file''</code>
|| <code>equery belongs ''file''</code>
|| <code>pacman -Qo ''file''</code>
|-
! Check the hash (i.e. MD5 etc.) sums of an installed package
|| <code>debsums -ca ''package''</code>
|| <code>equery check ''package''</code>
||
|-
! Show pre/post install/uninstall scripts from a ''package''
|| <code>rpm -q --scripts ''package''</code>
|| <code>less /var/lib/dpkg/info/''package''.{pre,post,config}*</code>
|| <code>-???-cat `equery which ''package''`</code>||
|-
! Show change log for a ''package''
|| <code>rpm -q --changelog ''package''</code>
|| <code>zcat /usr/share/doc/''package''/changelog.Debian.gz</code><br/><code>aptitude [-t release] changelog ''package''</code>|| <code>view /usr/portage/''category''/''package''/ChangeLog</code>|| <code>pacman -???-Qc ''package''</code>
|-
! colspan="45" align="center" | <big>'''Local package installation/upgrade/removal'''</big>
|-
! Install a package from local ''package_file''
|| <code>rpm -ihv ''package_file*.rpm''<br/>yum localinstall ''package_file*.rpm''<ref name="localinstall">In case there are unsatisfied dependencies for ''package_file'', yum will try to get and install it from known repositores.</ref></code>
|| <code>dpkg -i ''package_file*.deb'' <ref name="apt">Usually it is not necessary to download packages manually and install them. Use apt-cache search ''name'' to search for package in configured repositories and apt-get install ''package'' to install package and all its dependencies</ref></code>|| <code>emerge --usepkg|-k ''package''<ref name="emerge-usepkg">Use a binary package if itis available from $PKGDIR, otherwise emerge from source as usual.</ref></code><br/><code>emerge --usepkgonly|-K 's dependencies'package''<ref name="emerge-usepkgonly">Use a binary package if it is available from $PKGDIR, otherwise abort.</ref></code>|| <code>pacman -???-U ''package''</code>
|-
! Upgrade a package from local ''package_file''
|| <code>rpm -Uhv ''package_file*.rpm''</code>
|| <code>dpkg -i ''package_file*.deb'' <ref name="apt"/></code>
|| <code>emerge -???-update --usepkg|-k ''package''<ref name="emerge-usepkg"/></code><br/><code>emerge --update --usepkgonly|-K ''package''<ref name="emerge-usepkgonly"/></code>|| <code>pacman -U ''package''</code>
|-
! Remove an installed ''package''
|| <code>emerge --unmerge ''package''</code><br/>
<code>emerge --prune ''package''</code>
|| <code>pacman -R ''package''</code>
|-
! colspan="45" align="center" | <big>'''Package installation from repositories'''</big>
|-
! Install a ''package''
<code>aptitude update && aptitude install ''package''</code>
|| <code>emerge -av ''package''</code>
|| <code>pacman -S ''package''</code>
|-
! Install a debug information files for a ''package''
|| <code>debuginfo-install ''package''</code>
||
|| <code>FEATURES="splitdebug installsources" emerge -av ''package''</code>
||
|-
! Only download a ''package'' from repository, do not install
|| First install the yum-downloadonly plugin by running: <br/><code>yum install yum-downloadonly</code><br/> And then: <br/> <code>yum install|update ''package'' -y --downloadonly -???-downloaddir=/opt</code>|| <code>apt-get install --download-only --reinstall ''package''</code><ref name="dpkgdir">Package will reside in /var/cache/apt/archives.</ref><br/><code>aptitude download ''package''</code>
|| <code>emerge -avf ''package''</code><ref name="distfiles">Package sources will reside in /usr/portage/distfiles.</ref>
|| <code>pacman -Sw ''package''</code>
|-
! colspan="45" align="center" | <big>'''Get information about package interdependencies'''</big>
|-
! What a given ''package'' provides?
|| <code>rpm -q --provides ''package''</code>
|| <code>dpkg-query -W -f='${Provides}\n' ''package''</code>
|| <code>equery files ''package'' (package must be installed first)</code>|| <code>pacman -???-Ql ''package'' (package must be installed first)</code>
|-
! What a given ''package'' requires?
|| <code>rpm -q --requires ''package''</code>
|| <code>dpkg-query -W -f='${Depends}\n' ''package''</code>
|| <code>equery depgraph -???-depth=1 ''package''</code>|| <code>pacman -Si ''package''</code>
|-
! Which installed package(s) provide a given ''dependency''<ref name="dep">In rpm world, a ''dependency'' can be a package name, a file, or a special atom like <code>perl(IO::Zlib)</code> for a perl module. In deb world, this can be either real or virtual package name.</ref>?
|| <code>rpm -q --whatprovides ''dependency''</code>
|| <code>dpkg-???query -W -f='${Package}: ${Provides}\n' '*' | grep ': .*''dependency''<nowiki>'</nowiki></code>|| <code>-???-equery belongs ''dependency''</code>||
|-
! Which installed package(s) require a given ''dependency''<ref name="dep"/>?
|| <code>rpm -q --whatrequires ''dependency''</code>
|| <code>dpkg-???query -W -f='${Package}: ${Depends}\n' '*' | grep ': .*''package''<nowiki>'</nowiki></code><br><code>aptitude why ''package''</code><ref name="why">Actualy shows the whole dpendency situation that leads to install this package</ref>|| <code>equery depends ''package''</code>|| <code>pacman -???Qi ''package'' | grep Required</code>|||-! Show what prevents installation of a package|| <code>(yum/rpm tells with --verbose option -v)</code>|| <code>aptitude why-not ''package''</code>|| <code>emerge -pv ''package''</code>||
|-
! Get package source files<ref name="dep"/>?|| <code>yumdownloader -???-source ''package''</code>|| <code>apt-get source ''package''</code>|| <code>emerge -f ''package>''</code>|| <code>-???-abs ''repository''/''package''</code>
|-
! colspan="45" align="center" | <big>'''Working with package files'''</big>
|-
! Unpack a package ''file'' to local directory
|| <code>rpm2cpio ''file.rpm'' | cpio -id</code>
|| <code>dpkg -x / --extract ''file.deb'' .</code>
|| N/A
|| <code>tar -xzf ''package''</code> if ''package''.pkg.tar.gz or<br/><code>tar -xJf ''package''</code> if ''package''.pkg.tar.xz
|-
! Check package file integrity (checksums, signatures...)
|| <code>rpm -K ''file.rpm''</code><br/>(yum/rpm also checks GPG-signature and checksums automatically every time the package is installed or upgraded)|| <code>debsums ''package''</code>|| <code>emerge -f ''package''</code>|||-! Show package metadata|| <code>rpm -qip ''file.rpm''</code>|| <code>dpkg -I / -???-info ''file.deb''</code>
|| N/A
|| ??
|-
! colspan="4" align="center" Show package file list|| <bigcode>rpm -qlvp ''file.rpm''</code>|| <code>dpkg -c / --contents 'Repository queries'file.deb''</bigcode>|| N/A|| ??
|-
! colspan="5" align="center" | <big>'''Repository queries'''</big>|-! Find a package in a repository which <code>/some/file</code> belongs to
|| <code>yum provides ''/some/file''</code>
|| First run: <br/><code>apt-file update</code><br/>and then:<br/><code>apt-file search ''/some/file''</code>
|| N/A
||
|-
! Find a package based on some string or part of the string descriping it
|| <code>yum search ''\*substr\*''</code>
|| <code>apt-cache search ''\*substr\*''</code>
|| <code>eix -S ''substr''</code>
|| <code>pacman -Ss ''substr''</code>
|-
! Shows the full description of ''package''
|| <code>yum info ''package''</code>
|| <code>apt-cache show ''package''</code>
|| <code>eix ''package''</code>
|| <code>pacman -Si ''package''</code>
|}
* emerge configs: <code>/etc/make.conf</code>, <code>/etc/portage/</code>.
* Portage tree: <code>/usr/portage</code>.
* Binary packages (FEATURES="buildpkg" enabled in make.conf): <code>/usr/portage/packages</code>.
* Default directory to download sources to: <code>/usr/portage/distfiles</code>.
* Default Portage working directory: <code>/var/lib/portage/</code>.
== Notes==
