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2.9 KiB
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Executable file
[[chap-dnf]]
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= DNF
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DNF is a software package manager that installs, updates, and removes packages on Fedora and is the successor to YUM (Yellow-Dog Updater Modified).
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DNF makes it easy to maintain packages by automatically checking for dependencies and determines the actions required to install packages.
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This method eliminates the need to manually install or update the package, and its dependencies, using the `rpm` command.
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[[sect-dnf-installation]]
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== Installation
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DNF has replaced YUM as the default package manager for Fedora since version 22.
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However, for earlier versions of Fedora, starting from version 18, DNF can be installed from the command-line with:
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[source,bash]
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----
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yum install dnf
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----
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[[sect-usage]]
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== Usage
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`dnf` can be used exactly as `yum` to search, install or remove packages.
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To search the repositories for a package type:
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[source,bash]
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----
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sudo dnf search packagename
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----
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To install the package:
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[source,bash]
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----
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sudo dnf install packagename
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----
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To remove a package:
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[source,bash]
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----
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sudo dnf remove packagename
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----
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Other common DNF commands include:
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* `autoremove` - removes packages installed as dependencies that are no longer required by currently installed programs.
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* `check-update` - checks for updates, but does not download or install the packages.
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* `downgrade` - reverts to the previous version of a package.
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* `info` - provides basic information about the package including name, version, release, and description.
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* `reinstall` - reinstalls the currently installed package.
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* `update/upgrade` - checks the repositories for newer packages and updates them.
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For more DNF commands refer to the man pages by typing `man dnf` at the command-line, or link:++http://dnf.readthedocs.io/en/latest/command_ref.html[DNF Read The Docs]
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[[sect-automatic-updates]]
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== Automatic Updates
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The `dnf-automatic` package is a component that allows automatic download and installation of updates.
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It can automatically monitor and report, via e-mail, the availability of updates or send a log about downloaded packages and installed updates.
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For more information, refer to the link:++http://dnf.readthedocs.org/en/latest/automatic.html[Read the Docs: DNF-Automatic] page.
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[[sect-system-upgrades]]
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== System Upgrades
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The Fedora system can be upgraded directly with DNF, or with the DNF system upgrade plugin.
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Refer to the link:++upgrading.html++[Upgrade] document for more details.
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[[sect-language-support-using-dnf]]
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== Language Support Using DNF
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DNF can be used to install or remove Language Support.
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A detailed description with a list of available languages can be found on link:++https://fedoraproject.org/wiki/I18N/Language_Support_Using_Dnf[Language Support Using Dnf] page.
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[[sect-references]]
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== References
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. http://dnf.readthedocs.org/en/latest/command_ref.html[DNF Command Reference]
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. http://dnf.baseurl.org/[DNF blog]
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. https://github.com/rpm-software-management/dnf/wiki[DNF wiki] |