Managing File Ownership

Question 1

chmod

Answer 1

Changes assigned permissions; uses 2 different modes, symbol and octal

Question 2

symbolic mode

Answer 2

denote permissions using a letter code

Question 3

what are the symbolic mode tiers

Answer 3

u owner, g group, o others, a all tiers

Question 4

octal mode

Answer 4

nine permission bits are represented as three octal numbers

Question 5

chown

Answer 5

changes a files owner, needs # or sudo

Question 6

chgrp

Answer 6

changes files group, needs # or sudo

Question 7

read

Answer 7

read/view data in a file, list files in directory

Question 8

write

Answer 8

modify data in file, create, modify, delete, move files in directory

Question 9

execute

Answer 9

run file as script or binary, can change pwd to this location

Question 10

what are the 3 special permission bits that linux uses for controlling advanced behavior of files and directories

Answer 10

SUID, SGID, sticky bit

Question 11

the Set User ID (SUID) tells the Linux Kernel to?

Answer 11

run the program with the permissions of the file owner and not the user account actually running the file

Question 12

the SUID bit is indicated by an s in the place of?

Answer 12

the execute permission letter for the file owner: rwsr-xr-x

Question 13

If the SUID bit is set on a file that doesn’t have execute permission for the owner, it’s indicated by a?

Answer 13

capital S