Linux command for file permissions

Question 1

u

Answer 1

user

Question 2

g

Answer 2

group

Question 3

o

Answer 3

others

Question 4

a

Answer 4

all

Question 5

+

Answer 5

add

Question 6

-

Answer 6

remove

Question 7

=

Answer 7

assign

Question 8

s

Answer 8

set user ID

Question 9

r

Answer 9

read

Question 10

w

Answer 10

write

Question 11

x

Answer 11

execute

Question 12

how to make chmod readable to all?

Answer 12

chmod a+r *

Question 13

how to make chmod readable and writeable for a group?

Answer 13

chmod g+rw *

Question 14

how to remove read write and execute permissions from a user?

Answer 14

(command) u-rwx *

Question 15

how to change ownership of directory cups to user ID and group ID sys?

Answer 15

chown. lp.sys cups