Utilities are increasingly using mainstream software and connecting parts of their operations to the Internet so technicians can service problems remotely.
公共设施越来越多地使用主流软件，并把部分业务接入互联网，使技术人员可以远程提供服务。
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It has been my experience that no matter what the vendor has included in the box — whether it's home-grown utilities, a third-party tool, or software management — I always need other tools.
When you use RPM to upgrade software, the RPM utilities uninstall the old software and install the new version, ensuring that any outdated files are automatically removed.