# zcat -f /var/log/dpkg.log*|grep 'status installed'|awk '{print $1" "$5}'|sort -u |less 2015-05-04 ffmpeg 2015-05-04 libavcodec52 2015-05-04 libavdevice52 2015-05-04 libavfilter0 2015-05-04 libavformat52 2015-05-04 libavutil49 2015-05-04 libdc1394-22 2015-05-04 libdirac-encoder0 2015-05-04 libdirectfb-1.2-9 2015-05-04 libfaad2 2015-05-04 libgsm1 2015-05-04 libogg0 2015-05-04 libopenjpeg2 2015-05-04 liborc-0.4-0 2015-05-04 libpostproc51 2015-05-04 libraw1394-11 2015-05-04 libschroedinger-1.0-0 2015-05-04 libsdl1.2debian 2015-05-04 libsdl1.2debian-alsa 2015-05-04 libspeex1 2015-05-04 libsvga1 2015-05-04 libswscale0 2015-05-04 libtheora0 2015-05-04 libusb-1.0-0 2015-05-04 libvorbis0a 2015-05-04 libvorbisenc2 2015-05-04 libx86-1 2015-05-04 man-db