I'm pretty new to the operating systems deal and I've only learned a few basic topics such as the user and file management system in Linux. I have a question regarding the file permission in Linux. Is it cumulative just like windows? For example in Windows, if a user has read permission on a file and that user belongs to a group that has write permission on the same file, that user will have both read and write permission. Is it the same case for Linux?
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In a word, no.
This earlier question+answer explains in more depth. Understanding UNIX permissions and file types
steve
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For basic permissions yes, but there are also ACLs and in some case SELinux extensions. – xenoid Jan 05 '20 at 10:45