Three files have suddenly appeared in my home directory, called "client_state.xml", "lockfile", and "time_stats_log". The last two are empty. I'm wondering how they got there. It's not the first time it has happened, but the last time was weeks ago; I deleted the files and nothing broke or complained. I haven't been able to think of what I was doing at the time reported by
stat $filename. Is there any way I can find out where they came from?
Alternatively, is there a way to monitor the home directory (but not sub-directories) for the creation of files?