php - Anyway to use Terminal to locate this file? -

i downloaded , installed pear auth package using following on terminal

/applications/mamp/bin/php5/bin/pear install auth 

i got confirmation installed, when require_once('auth.php') in program running i'm getting error message failed include.

when in directory auth.php, can't see anywhere, but, said, have confirmation it's not installed.

a) because pear comes installed mamp, under impression pear auth.php woulded sync automatically php don't have build file path. correct?

b) there code can enter terminal find out file path of auth.php? assuming it's installed...

cd [installation_dir] find . -name auth.php -print 

this should show if file exists in installation directory.

regards