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Flattened the structure of the knowledge base
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Michele Cereda
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# Linux-related knowledge base
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The documents contained here can only (or mostly) be used on GNU/Linux-based systems.
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# The APT package manager
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## TL;DR
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```shell
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# mark all packages as non-explicitly installed
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apt-mark auto $(sudo apt-mark showmanual)
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# remove orphaned packages
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apt autoremove --purge
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```
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## Further readings
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- [Apt configuration]
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- [Configuring Apt sources]
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[apt configuration]: https://wiki.debian.org/AptConfiguration
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[configuring apt sources]: https://wiki.debian.org/SourcesList
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# Arch linux
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## Further readings
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- [Suspend and hibernate]
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[Suspend and hibernate]: https://wiki.archlinux.org/title/Power_management/Suspend_and_hibernate
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# Debian GNU/Linux
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## Further readings
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- The [APT] package manager
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- [Dpkg]
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- [Advice for new users on not breaking their Debian system]
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[apt]: apt.md
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[dpkg]: dpkg.md
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[advice for new users on not breaking their debian system]: https://wiki.debian.org/DontBreakDebian
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# Dpkg
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## TL;DR
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```shell
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# add an extra architecture
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dpkg --add-architecture i386
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# list extra architectures
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dpkg --print-foreign-architectures
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# list available extra architectures
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dpkg-architecture --list-known
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#list all installed packages of the i386 architecture
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dpkg --get-selections | grep i386 | awk '{print $1}'
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# remove the i386 architecture
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apt-get purge $(dpkg --get-selections | grep --color=never i386 | awk '{print $1}')
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dpkg --remove-architecture i386
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```
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## Further readings
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- [How to check if dpkg-architecture --list has all the architectures?]
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[how to check if dpkg-architecture --list has all the architectures?]: https://askubuntu.com/questions/852115/how-to-check-if-dpkg-architecture-list-has-all-the-architectures#852120
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# Flatpak
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## TL;DR
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```shell
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# add the `flathub` remote
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flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
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flatpak remote-add --user --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
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# search for `vscode`
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flatpak search vscode
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# install `vscode`
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flatpak install --user flathub com.visualstudio.code-oss
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# uninstall unused packages
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flatpak uninstall --unused
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```
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## Further readings
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- [Using Flatpak] getting started guide on the official [documentation]
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- [How to clean up Flatpak apps to clear disk space]
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[documentation]: https://docs.flatpak.org/en/latest/
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[using flatpak]: https://docs.flatpak.org/en/latest/using-flatpak.html
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[how to clean up flatpak apps to clear disk space]: https://www.debugpoint.com/2021/10/clean-up-flatpak/
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# Fwupd
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## TL;DR
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```shell
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# display all detected devices
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fwupdmgr get-devices
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# download the latest metadata from lvfs
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fwupdmgr refresh
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# display available updates, if present
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fwupdmgr get-updates
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# download and apply all available updates
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fwupdmgr update
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# report the status of an update
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fwupdmgr report-history
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# clear the local history of updates
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fwupdmgr clear-history
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```
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## Further readings
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- [Website]
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- [GitHub] page
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[github]: https://github.com/fwupd/fwupd
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[website]: https://fwupd.org/
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# Pamac
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## TL;DR
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```shell
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# check if updates are available (in aur too)
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pamac checkupdates --aur
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# delete all unneded packages and their dependencies from the system
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pamac remove --no-save --orphans --unneeded
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```
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## Further readings
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- Manjaro's [Wiki]
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[wiki]: https://wiki.manjaro.org/index.php/Pamac
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# The RPM package manager
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## TL;DR
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```shell
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# list all installed packages
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rpm --query --all
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# list files installed by a package
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rpm --query --list package
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# find the package owning a file
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rpm --query --file /usr/bin/file
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```
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## Further readings
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- [How can I list all files which have been installed by an ZYpp/Zypper package?]
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[how can i list all files which have been installed by an zypp/zypper package?]: https://unix.stackexchange.com/questions/162092/how-can-i-list-all-files-which-have-been-installed-by-an-zypp-zypper-package#239944
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# The Zypper package manager
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SUSE and openSUSE GNU/Linux's package management utility.
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## TL;DR
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```shell
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# update the repositories
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zypper refresh
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# search for a package
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zypper search nmap
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# install a package
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zypper install parallel
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```
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## Gotchas
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Zypper does not have for now a way to list the content of an installed package. Use [rpm] for this:
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```shell
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sudo rpm --query --list ${PACKAGE_NAME}
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```
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## Further readings
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- [rpm]
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[rpm]: rpm.md
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## Sources
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- [How can I list all files which have been installed by an ZYpp/Zypper package?]
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[how can i list all files which have been installed by an zypp/zypper package?]: https://unix.stackexchange.com/questions/162092/how-can-i-list-all-files-which-have-been-installed-by-an-zypp-zypper-package#239944
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