All software that is installed on your server after a default installation is installed from RPM packages. As an administrator of SUSE Linux Enterprise Server, it is useful to know how to handle these RPM packages. The RPM standard was developed by Red Hat in the mid-1990s and has become the de facto standard for managing and installing software on most Linux distributions.
The core of the RPM-based installation is the RPM database, which by default is in the directory /var/lib/rpm. This database is the complete archive of everything that is installed on your server, as long as it comes from RPM packages. YaST and other management utilities are working on this database directly. In the following sections, I'll spend a few words on working with RPM from the command line. For this purpose, you can use the powerful command rpm.
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