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What permissions are needed by a non root user to remove a file or directory?
Practically, we don’t need any permissions to remove the file, nor do we care about its owner. The only requirement is to have write permissions on the parent directory (and the execute flag on the parent directory).
Can a normal user use chown to change the ownership of a file to any arbitrary user?
No, you cannot change the owner a file without access, but if you own the file, you can change the permissions of the file with chmod and may change the group with chgrp to another group you a member of. Related Question: chown is allowed to non root user?
Can only root use chown?
chown is a privilege restricted to root, since otherwise you could pawn off your files on other users to avoid quota restrictions.
How to allow non root user to change file permissions?
If you want group project use folder but not delete files of other member of group use sgid+sticky If this don’t work,the only solution (as I know) is sudo,is possible to assign group and specific command,for example,edit with visudo And if you need to use chmod only on specific folder,you can make a bash script and use this as sudo command.
Is it possible to delete a file without permission?
You can delete any files without permission in your /home/user/ folder and in /tmp/ folder you can delete some files that aren’t owned by root, other than that, big NO. To delete a file ,permissions on files have no importance.To delete a file you should have proper permission (write permission) on directory that is housing it.
How to change the permissions of a file?
Let’s say Bob creates a file “test.txt” in /srv/share/ The permissions would look like this: UserOwner: Bob GroupOwner: AGroupName Permissions: 755 Now let’s say our application would like to change the permission of the file “test.txt” to 770. That’s only possible when the application runs as root.