File and Directory Modes

These prefs are used when checking and setting modes when working
| with the file system.  The defaults are fine on servers with proper
| security, but you may wish (or even need) to change the values in
| certain environments (Apache running a separate process for each
| user, PHP under CGI with Apache suEXEC, etc.).  Octal values should
| always be used to set the mode correctly.
 Hooks

This file lets you define "hooks" to extend CI without hacking the core
files.  Please see the user guide for info
DATABASE CONNECTIVITY SETTINGS

This file will contain the settings needed to access your database.
For complete instructions please consult the 'Database Connection page
of the User Guide.