Prevent group ownership change on file save?
42631
How can I share a directory with an another user?
136272
How to make files protected?
32025
Can't change owner of folders/files on thumb drive
20211
Strange behaviour of 'sudo chmod -rwx': Does not remove group write permissions
34185
Preventing other users from viewing my files
153677
Is there a reason why 'owner' permissions exist? Aren't group permissions enough?
102116
How Should I Correct the Owners and Permissions in an OS X User Folder?
156799
Prevent people from downloading / copying / making a copy of data in Google doc
6497
How to prevent Wine from adding file associations?
124273
Change user id and group id ownership of files within a tarball?
77428
How do I copy a folder keeping owners and permissions intact?
26065
granting write permissions to a group to a folder
153564
How can I change a set of files Permsissions from Root to user
26787
Precedence of user and group owner in file permissions
31538
Is it possible to grant rename permissions, but not delete, in NTFS?
51272
How can I keep recent files from appearing in Unity?
135538
How to make items copied into a folder respect its permissions?