File and Directory Permissions

Question 1

What command is used to change file owner and group?

Answer 1

chown
-R option can be used to change files and directories recursively

Question 2

What command used to change group ownership but leave user ownership unchanged

Answer 2

chgrp
-R option to do this recursively

Question 3

Command to change file mode bits (permissions)

Answer 3

chmod
- symbolic mode permissions rwx
octal mode read (4) write (2) and execute (1)

Question 4

How to remove a read permission from other?

Answer 4

chmod o-r test2

Question 5

Add write permissions to test1

Answer 5

chmod 664 test1

Question 6

chmod g+w,o-x ops_team/

Answer 6

synmbolic mode to change permissions

Question 7

To switch users?

Answer 7

sudo su - clark (this only works if you have sudo permissions)