yum list apr #显示已安装、可安装的包
Installed Packages
apr.x86_64
Available Packages
apr.i686
yum search apr #查询安装包
yum info apr #查看安装包详细信息
yum groupinstall -y '' #安装包组
yum install -y '' #安装包
#删除系统中包
yum remove apr apr-util subversion subversion-libs