zypper in -d
下载软件包但是不安装，前提是这个软件没有安装，如果已安装最新版本，软件也不会下载。
软件下载缓存路径
/var/cache/zypp/packages/
这个路径下面会根据不同的源有不同的目录，可以使用find命令查找软件具体位置。
linux:~ # zypper in -d openssl
Loading repository data...
Warning: Repository 'openSUSE-42.3-Update-Non-Oss' appears to be outdated. Consider using a different mirror or server.
Warning: Repository 'openSUSE-42.3-Update-Ossz' appears to be outdated. Consider using a different mirror or server.
Reading installed packages...
Resolving package dependencies...
The following 2 NEW packages are going to be installed:
libopenssl1_1 openssl-1_1
The following package is going to be upgraded:
openssl
The following package is going to change architecture:
openssl x86_64 -> noarch
The following 3 packages are not supported by their vendor:
libopenssl1_1 openssl openssl-1_1
1 package to upgrade, 2 new, 1 to change arch.
Overall download size: 2.6 MiB. Already cached: 0 B. Download only.
Continue? [y/n/? shows all options] (y):y
......
linux:/var/cache/zypp/packages # find -name "libopenssl1_1*"
./openSUSE-Leap-15.0-Oss/x86_64/libopenssl1_1-1.1.0h-lp150.2.1.x86_64.rpm
zypper in -D
显示安装软件具体需要依赖安装哪些其他软件，如果依赖的软件已经安装，就不会显示出来。
