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I don’t have read permissions on a file but I can read it

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I have a file owned by a different user with permissions 440. When I do ‘groups’ I don’t belong to the group of the file, but when I do ‘groups my_username’ I do. Why am I able to open the file if my current shell does not have access to the group?
Asked by Shock-o-lot (11 rep)
Oct 30, 2020, 12:37 AM