06 Linux Permissions

Permissions

permissions

 

d

groups command  you can also use  id -Gn

permission categories

 

 

decoder ring

 

chmod

ugoa  User category  user, group,other ,all

 

rwx Read Write Execute

numeric based permissions

UGO

UGO

Commonly Used Permissions

Commonly Used Permissions

 

chgrp  changes the group

umask [-S] [mode]

umask

Common unmask modes

022

002

077

007

Umask permutation

Umask permutation

umask 0022 is the same as umask 022

chmod 06400 is the same as chmod 644