Linux access level permission why it is different for user and UPG
42092
Unable to read file although member of group with read permissions
108206
What does a dot after the file permission bits mean?
20211
Strange behaviour of 'sudo chmod -rwx': Does not remove group write permissions
147476
Do permissions apply across users?
78893
Linux - why do the su and sudo binaries need to be set-UID root?
40667
How do I gain root privileges?
134257
New user with root access in Linux Debian
132890
List user's folder access permissions
52186
What are the recommended directory permissions?
86191
What is the difference between 'sudo' and 'su -c'
86511
How do Ubuntu and Debian manage $HOME for users with sudo privileges?
105266
Samba: Write access rights without read access rights possible?
133958
Why is the 'sudo' password different than the 'su root' password
62818
Giving group permissions to other user's files
84706
What does op-permission-level do?
125558
Why Changing Permissions For Some Systems Files is Not Allowed?
23633
Why can I list other users processes without root permission?