Novell LINUX ENTERPRISE SERVER 11 - ADMINISTRATION Administration Manual page 38

If an error occurs during installation, or anytime you feel the need, verify whether all
dependencies are still fulfilled:
zypper verify
4.1.3 Updating Software with Zypper
There are two different ways to update software using Zypper. To integrate all officially
released patches into your system, just run:
zypper patch
In this case, all patches available in your repositories are checked for relevance and
installed if necessary. After registering your SUSE Linux Enterprise installation, an
official update repository containing such patches will be added to your system. The
above command is all you must enter in order to apply them when needed.
If a repository just contains new packages, but does not provide patches,
zypper patch does not show any effect. To update all installed packages with
newer available versions, use:
zypper update
To update individual packages, use the update command with arguments:
zypper update package_name
Or the installation command:
zypper install package_name
A list of all new packages available can be obtained with the command:
zypper list-updates
Similarily, to list all needed patches, use:
zypper list-patches
4.1.4 Managing Repositories
All installation or patch commands of Zypper rely on a list of known repositories. To
list all repositories known to the system, use the command:
zypper repos
24 Administration Guide