Linux – Permissions

 

In order to update and change file permissions, you can use the chmod command. The format of the command is as follows:

for each action

 

Changing Permissions

VALUE	MEANING
rwx+ugo	No restrictions on permissions.
u+rwx,go+rx,go-x	The file’s owner may read, write, and execute the file. All others may read and execute the file.
u+rwx,og-rwx	The file’s owner may read, write, and execute the file. Nobody else has any rights.
ugo+rw,ugo-x	All users may read and write the file.
u+rw,u-x,go+r,go-wx	The owner may read and write a file, while all others may only read the file.
u+rw,u-x,go-rwx	The owner may read and write a file. All others have no rights.