> > Yes, I found some of dpkg.status.x files. > > > > But I don't know when these files are written. > > Daily, from /etc/cron.daily/standard. Thank you. Does apt-get provide a feature like a history file? I would like to keep track what I installed at a certain time. Or at least have apt-get made status backups each time I install something. There is nothing to find in the man page. Florian.