Centos
- 安装rar，方法如下
touch /etc/yum.repos.d/dag.repo [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://apt.sw.be/RPM-GPG-KEY.dag.txt yum -y install rar unrar