Are you trying to locate files within your distro for debugging purposes ?
There is a package for unix named mlocate
To install it you can use the following:
// Cent OS
yum install mlocate -y && updatedb
// Debian or Ubuntu
apt-get install mlocate -y && updatedb
The first part before “&&” installs mlocate. The second command “updatedb”, updates the .db file with all files within the system.
Usage Example:
locate passbolt
Result:
lets say you looking for a specific file, you can pipe the output to grep:
locate passbolt | grep -i passbolt.php
Result:
This way you can retrieve exactly what you are looking for. This goes for log files, config files. Basically any file that is on your system.
Log File example:
If you recently installed a package and cannot find it using locate. That means the automatic cron has not run yet. You can force the db to update using updatedb
Enjoy 
