[octopus@pc3 Desktop]$ yum
Yum command has been deprecated, redirecting to '/usr/bin/dnf '.
See 'man dnf' and 'man yum2dnf' for more information.
To transfer transaction metadata from yum to DNF, run:
'dnf install python-dnf-plugins-extras-migrate && dnf-2 migrate'

You need to give some command
usage: dnf [options] COMMAND

List of Main Commands

autoremove                
check-update              Check for available package upgrades
clean                     Remove cached data
distro-sync               Synchronise installed packages to the latest available versions
downgrade                 downgrade a package
group                     Display, or use, the groups information
help                      Display a helpful usage message
history                   Display, or use, the transaction history
info                      Display details about a package or group of packages
install                   Install a package or packages on your system
list                      List a package or groups of packages
makecache                 Generate the metadata cache
provides                  Find what package provides the given value
reinstall                 reinstall a package
remove                    Remove a package or packages from your system
repolist                  Display the configured software repositories
repository-packages       Run commands on top of all packages in given repository
search                    Search package details for the given string
updateinfo                Display advisories about packages
upgrade                   Upgrade a package or packages on your system
upgrade-to                Upgrade a package on your system to the specified version

List of Plugin Commands

builddep                  Install build dependencies for packagei or spec file
config-manager            manage dnf configuration options and repositories
copr                      Interact with Copr repositories.
debuginfo-install         install debuginfo packages
download                  Download package to current directory
kickstart                 Install packages defined in a kickstart file on your system
langavailable             Search available langpack packages
langinfo                  Show langpack packages for a given language
langinstall               Install the given packages
langlist                  Show installed languages
langremove                Remove the given packages
migrate                   migrate yum's history, group and yumdb data to dnf
needs-restarting          determine updated binaries that need restarting
playground                Interact with Playground repository.
repoquery                 search for packages matching keyword
reposync                  download all packages from remote repo
[octopus@pc3 Desktop]$ ^C
[octopus@pc3 Desktop]$ ^C
[octopus@pc3 Desktop]$