yum是centos下的在线安装工具。
yum clean all #清除所有无用包 yum makecache #缓存 yum list #列出可安装程序包 yum deplist rpm #列出依赖 yum check-update #检查更新 yum update #安装更新 yum upgrade yum install nginx #安装nginx yum remove nginx #移除nginx yum grouplist #列出批量组 yum search nginx #搜索nginx yum groupinsall Development Tools #批量安装 yum provides ddclient #列出软件包提供哪些文件 yum info ddclient #检查软件包信息 yum localinstall #本地安装 yum install epel-release -y nano /etc/yum.repos.d/epel.repo #本地源
参考资料：
- https://blog.csdn.net/shuaigexiaobo/article/details/79875730
- http://www.vixual.net/blog/archives/101
- https://zhuanlan.zhihu.com/p/64490979