Prevent file from being deleted

[Trevor]

A file named "important" resides in the login directory of the user account
"trev1".   The file is owned by the user account "trev1".

The file named "important" has the following permissions:  -rwxrwxrwx

Without changing/modifying the permissions on this file, write the command
that will prevent this file from being deleted by the account "trev1", or "root".

Note:  All other files in the login directory of the user account "trev1"
              are able to be deleted!!!

[Bader_Assiri]

Hi Trevor,

I would use the below command and make the the file to be immutable.

#chattr +i important

#lsattr important

Output

----i--------------- important

[Trevor]

And Bader, that would definitely get the job done!!!

Great solution!!!