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Motivation

When automating tasks often the requirement comes up to retry commands, for example when network connections are involved and commands do not return successfully immediately or if resources are temporarily not available. Sometimes a simple for-loop in bash is sufficient. Sometimes it is necessary to use additional waiting between retries, sometimes timeouts are desired. Getting all those combinations right can be tedious and error-prone so a generic "retry" command should be available in usual environments so we should provide a retry command to openSUSE distributions.