In RHEL 8, RH124, Chapter 7, Section 6, in the examples for umask there is another significant error in the text:
It says, "New directories have read and write access for group..." This is incorrect, as seen by the example output.
It should say, "New directories have read and execute access for group..."
Proven by:
(system, for directories) 0777 - (umask) 0027 = (permissions) 0750, which is: rwxr-x---
