Modify File and Directory Permissions

Question 1

gives you the long list of files and directories with ownership and permissions, etc

Answer 1

ls -l

Question 2

chmod option to hide most error messages

Answer 2

-f

Question 3

chmod option to report changes made in permission

Answer 3

-c

Question 4

default permissions for files created by root

Answer 4

644

Question 5

default permissions for directories created by root

Answer 5

755

Question 6

default permissions for directories created by users with limited access rights

Answer 6

775

Question 7

default permissions for files created by users with limited access rights

Answer 7

664

Question 8

Where to set system-wide unmask

Answer 8

/etc/bashrc

/etc/profile

Question 9

Where to set per-user unmask

Answer 9

~/.bashrc

Question 10

numerical value of read

Answer 10

4

Question 11

numerical value of write

Answer 11

2

Question 12

numerical value of execute

Answer 12

1

Question 13

List hidden files

Answer 13

ls -a

Question 14

display long list of files and directories (also known as long format)

Answer 14

ls -l

Question 15

define exactly what a user is allowed to do with a particular file or directory

Answer 15

permission attributes