Give user permissions for root folder
6764
How do file permissions work?
39794
Create an SSH user who only has permission to access specific folders
36050
Grant permission for new created files inside folder automatically
41831
Permissions issues for shared directory on a server
141672
How to give permissions to specific command?
26787
Precedence of user and group owner in file permissions
103377
How to create a user with root privileges in bash?
42702
Can not change permissions while root
43449
Adding execute permission in opt folder
102116
How Should I Correct the Owners and Permissions in an OS X User Folder?
116001
Why does the root user need sudo permission?
131254
Can you grant superuser privileges to an application?
127738
Can root/superuser read my read-protected files?
73661
File permissions won't change
147476
Do permissions apply across users?
105979
Permissions messed up in home folder
150893
Getting warning file permission with root user