Definition: The word "RHEL4_U2" is a command in Linux that stands for Red Hat Enterprise Linux 4.2 or later. It indicates the release version, with newer versions such as Red Hat Enterprise Linux 5 being considered more stable than older versions. Detailed definitions include: - RHEL: Red Hat Enterprise Linux - 4.2: Red Hat Enterprise Linux 4.2 - U2: Userland build In simpler terms, it's the release version of a software operating system like Red Hat Enterprise Linux.
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