rpm -F和rpm -U有什么区别？

Question

我正在通过rpm的手册页，但可以得到rpm -F和rpm -U之间的确切区别。
任何人都可以请我帮忙吗？

Answer 1

-F|--freshen仅安装系统上已安装的软件包的更新。所以

rpm -U already-installed-package.2.0.rpm 
rpm -F already-installed-package.2.0.rpm 

相当，但

rpm -U not-installed-package.2.0.rpm # will install 
rpm -F not-installed-package.2.0.rpm # won't install 

都没有。

从该名男子页：

转{-U | --upgrade} [安装选项] ... PACKAGE_FILE

This upgrades or installs the package currently installed to a newer version. This is the same as install, except all other 

包的版本（或多个）后取出新包装安装了 。

rpm {-F|--freshen} [install-options] PACKAGE_FILE ... 

    This will upgrade packages, but only ones for which an earlier version is installed.