Recently I uninstalled some software using sudo apt-get --purge autoremove, thinking that this would remove all traces of it including unused dependencies and configuration files. However I discovered that a configuration file was left behind in my home folder. Is there a more powerful command which would remove even that? As a related question about keeping things clean , is is safe to delete the hidden files and folders under home, if they are merely configuration files, or are there other kinds of files?