DNF's name tool comes from Dandified YUM.
You can find all about this tool in the Fedora documentation area.
As you know the YUM is in use on older systems and comes from Yellowdog Updater, Modified.
All of these tools need to have sudo that gives you administrative access to your system.
When you run the DNF tool this will checks for metadata automatically whenever you begin a system update or otherwise install software from repositories.
For this reason, the update and upgrade commands perform the same function.
Let's see the basic usage of the DNF tool:
Search a fedora package named FedoraPackage in the repositories.
sudo dnf search FedoraPackageInstall the FedoraPackage package if exist in the repository.
sudo dnf install FedoraPackageIf you want to uninstall the package FedoraPackage use this:
sudo dnf remove FedoraPackageI can reinstall the package FedoraPackage
sudo dnf reinstall FedoraPackage -yTo automatically remove unneeded dependencies, use:
sudo dnf autoremoveThe DNF can find out which package provides a particular file.
sudo dnf provides /etc/httpd/conf/httpd.confThe detailed information of a package can be viewed with:
sudo dnf info httpdThe DNF history contains all actions that have been performed by the DNF command.
sudo dnf historyI can view further information about a transaction by specifying its ID:
sudo dnf history info 13I can undo this transaction if we want:
sudo dnf history undo 13 -yI can redo with:
sudo dnf history redo 13 -yThe DNF will cache data to the /var/cache/dnf directory and I clean it with:
dnf clean allI have the option to manually make the cache so that future actions will be quicker.
sudo time dnf makecacheThe DNF tool gives me the ability to list all packages that are currently installed on our Linux system:
sudo dnf list installedPackages that are related to each other may be grouped together into a package group.
sudo dnf grouplistI can install it with this command:
sudo dnf groupinstall "Web Server" -yI can check if an update is available
sudo dnf check-updateI can ignore an update for the FedoraPackage package with this command:
sudo dnf update -x FedoraPackageI can use it for automatic tasks such as updating regularly via cron jobs.
sudo dnf install dnf-automatic -yI can install security only
sudo dnf updateinfo list secI can see displays information for enabled repositories only:
sudo dnf repolistI can see all of the repositories
sudo dnf repolist allSet update testing with:
sudo dnf config-manager --set-enable updates-testingDisable update testing:
sudo dnf config-manager --set-disable updates-testingYou can list packages from a specified repository, for instance, FedoraPackage:
sudo dnf repository-packages FedoraPackage listTo display only a list of those packages available from the specified repository, add the available option.
sudo dnf repository-packages fedora list availableTo display only a list of those packages installed from the specified repository, add the installed option
sudo dnf repository-packages fedora list installedTo add and enable a new repository like Grafana, run the following command.
Open a new file named grafana.repo:
sudo nano /etc/yum.repos.d/grafana.repoAdd this in the grafana.repo
[grafana]
name=grafana
baseurl=https://packages.grafana.com/oss/rpm
repo_gpgcheck=1
enabled=1
gpgcheck=1
gpgkey=https://packages.grafana.com/gpg.key
sslverify=1
sslcacert=/etc/pki/tls/certs/ca-bundle.crtsudo dnf config-manager --add-repo /etc/yum.repos.d/grafana.repoTo enable the DNF repository
sudo dnf --enablerepo=grafana install grafanaTo disable a DNF repository
sudo dnf --disablerepo=fedora-extras install grafana To permanently disable a particular repository
sudo dnf config-manager --set-disabled grafanaThese are just a few basic ways to use the DNF utility.
