Centos yum命令大全
1.使用YUM查找软件包
$ yum search python2.列出所有可安装的软件包
$ yum list | grep python3.列出所有可更新的软件包
$ yum list updates 4.列出所有已安装的软件包
$ yum list installed | grep python
$ yum search python$ yum list | grep python$ yum list updates $ yum list installed | grep python