rpm

1.1、rpm简介

short for	`:`	`RedHat Pacakge Manager` `RPM Package Manager`
what's it	`:`	`a low-level, but powerful command-line package manager.`
used by	`:`	RHEL、CentOS、Fedora、openSUSE
开发语言	`:`	C
官方主页	`:`	https://rpm.org
高级工具	`:`	yum、dnf、zypper

1.2、rpm [option]...

1.2.1、-E | --eval <EXPR>...

示例：

rpm -E %centos
rpm -E %fedora

分别显示出CentOS、Fedora的主版本号。

1.2.2、-i | --install <FILE | URL>...

安装某（几）个指定的软件包。

rpm -i epel-release-latest-7.noarch.rpm
rpm -i https://mirrors.ustc.edu.cn/epel/epel-release-latest-7.noarch.rpm

1.2.3、-v | --verbose

打印出详细的日志。

rpm -iv epel-release-latest-7.noarch.rpm
rpm -iv https://mirrors.ustc.edu.cn/epel/epel-release-latest-7.noarch.rpm

1.2.4、-h | --hash

打印出进度，某些过程比较消耗时间，打印出进度，用户体验比较好。

rpm -ivh epel-release-latest-7.noarch.rpm
rpm -ivh https://mirrors.ustc.edu.cn/epel/epel-release-latest-7.noarch.rpm