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It seems they use a "special" kind of group called 'Virtual Machines', which Cygwin (3.6.5) /bin/getent cannot lookup: getent group 'Virtual Machines' Does anyone have ideas or clues how to get getent group to work with this kind of Windows group? We want the Cygwin gid for that group, and use Cygwin commands to work with those files... Thanks, Martin -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple