Problem 7 (12 points): Answer the following questions about the chmod command:

a) Compare and contrast symbolic notation and numeric notation.

b) Using symbolic notation, how would you add write and execute permission for the user?

c) Using symbolic notation, how would you take away read permission from the group and the others?

d) Using numeric notation, how would you assign the permission string -rw--w--w- ?

e) Using numeric notation, how would you assign the permission string -r--rwx--- ?

f) If you have a link to a file rather than the actual file, how do you change the permissions of the link itself rather than the actual file (hint: look up the man page for chmod)?

g) What does chmod a=rw music.rtf accomplish?