Homework & Coursework Questions

1. The problem statement, all variables and given/known data:
Don't understand this problem: The question is the unix command chmod 754 file3 would yield the same permissions as:
I put: chmod u=rwx, g=rx, o=r file3
correct answer was : chmod u+rwx, g=rx, o=r file3

I guess im asking for what does the "+" mean and what the difference to why this is wrong.


2. Relevant commands, code, scripts, algorithms:

chmod


3. The attempts at a solution (include all code and scripts):
test question wrong


4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):

FSU, Tallahassee, FL, USA, Prof. Rob, COP 3353

Phrased differently from your previous similar question:
https://www.unix.com/unix-dummies-que...rmissions.html

Referring to your current post in this thread, Imho you are 100% correct.

Code:

chmod u=rwx, g=rx, o=r file3
Is exactly the same as:
chmod 754 file3

Code:

chmod u+rwx, g=rx, o=r file3
would not unset the SUID bit (if it was set)
therefore it is not exactly the same as
chmod 754 file3