1.11 – Ownership in Linux & Mac

Question 1

Ownership

Answer 1

*Linux & Mac OS both share origins with OS known as Unix
—Have many similarities when it comes to controlling file access

Question 2

chown

Answer 2

used to change the owner & group of a file

Question 3

syntax

Answer 3

chwon user: groupfile

EX: chown juan: instructors class_presentation
—changes the owner to juan
—changes the group to instructor

Question 4

chmod

Answer 4

used to change permissions of a file or folder

owner / group / everyone

owner permissions apply to the original file creator

group permissions apply to the group of accounts that have been given access

Question 5

read / write / execute

Answer 5

are different permissions that can be granted to a user or group of users

Question 6

read(r)

Answer 6

+4 permission

= allows someone to view the contents of a file

Question 7

write(w)

Answer 7

+2 permission

= allows someone to save changes to a file

Question 8

execute(x)

Answer 8

+1 permission

= allows someone to execute programs or scripts

Question 9

Assign Full Permissions

Answer 9

assign read+ write+ execute or 4+2+1 = 7

Question 10

read / write / execute

EXAMPLE

Answer 10

chmod 764 class_presentation

chmod u+rwx / g+rw / a+r

*sets owner to have full permissions [7]
*group has read & write [6]
everyone has just read [4]