I read some specification says that if append-only is set to a
directory, you can only create or modify files in that directory, but
no delete.
But when I tried this attribute on a directory, I was not able to
create new files in that directory. let's say the derectory is /dev,
I set it to be append-only with:
chattr +a /dev.
Then I cannot create new files in it with command cp /dev/aa /dev/bb,
not that aa is a normal text file here.
Why the result conflict with the specification? Is there anyway to
make a directory really append-only? Thanks in advance!
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