Every user should be allowed to put/read files in directory, but ONLY the FILE OWNER can delete their files
137066
Ability to add files to a directory but not remove existing files
44012
Can files be created with permissions set on the command line?
9812
Execute vs Read bit. How do directory permissions in Linux work?
38066
How to make read-only file system writable?
102960
How do file permissions work for the "root" user?
107135
Deleting another user's directories from my own
75022
Delete a user and all files owned by this user
73661
File permissions won't change
31538
Is it possible to grant rename permissions, but not delete, in NTFS?
103670
What is a valid use case for an "execute only" file permission?
16825
How can I change all of the contents inside of directory to what the default file ownership and permissions are?
22915
Make all new files in a directory accessible to a group
26787
Precedence of user and group owner in file permissions
95735
Mount USB drive with write permissions for everyone or specific user
52959
Restrict static file access to logged in users
71884
Prevent admin users from reading my files
94134
Files are read-only, and refuse to change