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#### A.1.2 Unix Configuration Files

When AVRDUDE is build using the default --prefix configure option, the default configuration file for a Unix system is located at `/usr/local/etc/avrdude.conf`. This can be overridden by using the -C command line option. Additionally, the user's home directory is searched for a file named `.avrduderc`, and if found, is used to augment the system default configuration file.