Most Red Hat-based distributions should have a file called redhat-release. You can find it in: /etc/redhat-release You just need to view this file using: cat /etc/redhat-release
H. Gall, M. Jazayeri, {. Klösch, and G. Trausmuth. Proc. Int'l Conf. Software Maintenance (ICSM), page 160--166. IEEE Computer Society Press, (September 1997)
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