centos解压rar压缩包

vi /etc/yum.repos.d/dag.repo添加如下内容：

[dag]
name=Dag RPM Repository for Red Hat Enterprise Linux
baseurl=http://apt.sw.be/redhat/el$releasever/en/$basearch/dag
gpgcheck=1
enabled=1
gpgkey=http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt

然后yum -y install rar unrar即可