So, I'm logged in as sudo, and seeing this... why?
$ cd /var/www/drupal-6.19/sites/default
$ ls
default.settings.php
$ sudo -v
[sudo] password for sudo_username:
$ cp default.settings.php settings.php
cp: cannot create regular file `settings.php': Permission denied
$ chmod 666 default.settings.php
chmod: changing permissions of `default.settings.php': Operation not permitted
CONTEXT: Drupal install that requires I copy a file (default.settings.php) and rename it as (settings.php) and then change the file permissions to (666).
Believe the question is clear, but if you have any questions, just ask! - Thanks!!
UPDATE: Wow, thanks for all the quick replies, they're all correct. Selected the answer based on response time as a result. Again, thanks!!