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CentOS7.5にdnfをインストールする

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#dnfとは?
yumの後継となるパッケージマネージャー。
Fedora18から試験運用されており、Fedora22でデフォルトのパッケージ管理ツールとされている。

dnfのwiki

#yumとの違い
yumはPython2.xで動作(Python3.Xではエラー)
dnfはPython3.Xでも動作する

#インストール

yum -y install wget
yum -y install epel-release
yum -y install dnf
(これでインストールできなければ以下)
wget http://springdale.math.ias.edu/data/puias/unsupported/7/x86_64/dnf-conf-0.6.4-2.sdl7.noarch.rpm
wget http://springdale.math.ias.edu/data/puias/unsupported/7/x86_64/dnf-0.6.4-2.sdl7.noarch.rpm
wget http://springdale.math.ias.edu/data/puias/unsupported/7/x86_64/python-dnf-0.6.4-2.sdl7.noarch.rpm
yum install python-dnf-0.6.4-2.sdl7.noarch.rpm dnf-0.6.4-2.sdl7.noarch.rpm dnf-conf-0.6.4-2.sdl7.noarch.rpm

#確認
yumのオプションは引き継いでいるので同じ使い方でOK

dnf -y install httpd
dnf remove httpd

#まとめ
近い内にはyumは無くならないだろうけど来る日に備えときましょう。
(ドキュメントとかとか)

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