rm: remove regular file ‘config.txt’?

Given the output below:

[root@appserver ~]# rm config.txt

rm: remove regular file ‘config.txt’? yes

rm: cannot remove ‘config.txt’: Operation not permitted

Which of the following might be the cause?
A . The file config.txt does not have the user write bit set.
B . The file config.txt does not exist.
C . The file config.txt has the immutable attribute set.
D . The file config.txt has an ACL that does not permit deletion by others.

View Answer

Answer: A