The first character has :-( indicates that this is a file), d (indicates that this is a directory), l (that this is a link, such as Shortcuts in the window)
Permissions, roles settings:
Set 1. Role
Modify Owner: chown [-R] file name or directory user (-R may be added all directory files recursively disposed below the same effect as the owner)
Modify owner and group: chown [-R] User Name: the name of the file or directory group
Review belonging group: chgrp [-R] groups file or directory name
2. permission settings:
Mode 1:
Modify the permissions: chmod [-R] xyz file or directory
(X denotes owner permissions, y represents the privileges of the group, z represents another user)
r: 4 w: 2 x: 1 rwx authority digital sum i.e.
Option 2:
Modify the permissions: chmod [-R] xyz file or directory
x ugoa role on behalf of the owner, the owning group, others
provided y + - = representing increasing, decreasing, provided
z permissions rwx