Linux File Permissions - C-Crawford/connor-tj-sys GitHub Wiki

NOTE: Most commands below require sudo access.

How to create groups:

• mkgrp [group name]
• Optional: Create a directory for the group
• • mkdir /[group name]

How to add user to group:

• usermod -aG [group name] [username]

Assign file to group:

• chgrp [group] [file]

Assign file to owner:

• chown [user] [file]

Adjust rwx directory:

• chmod [number] [file]

Read (4), Write (2), eXecute (1)

Add together (ex: 6 = Read + Write)

Owner first, then group, then user