Latest upgrade borked my system and I`m trying to revert the last upgrade. I opened my comp with live USB and chrooted to partition that is OS installed. I get the upgraded packages with
cat /var/log/dpkg.log | grep upgrade >>upgradeddpkg
It lists pakages like
2014-03-14 15:31:45 upgrade libprocps0:i386 1:3.3.3-2ubuntu5.3 1:3.3.3-3
2014-03-14 15:31:52 upgrade libreadline-dev:i386 6.2-9ubuntu1 6.2+dfsg-0.1
2014-03-14 15:31:53 upgrade libreadline6-dev:i386 6.2-9ubuntu1 6.2+dfsg-0.1
2014-03-14 15:31:55 upgrade readline-common:all 6.2-9ubuntu1 6.2+dfsg-0.1
2014-03-14 15:32:25 upgrade libreadline6:i386 6.2-9ubuntu1 6.2+dfsg-0.1
2014-03-14 15:32:33 upgrade libudev0:i386 175-0ubuntu19 175-7.2
2014-03-14 15:32:40 upgrade libdevmapper-dev:i386 2:1.02.74-6ubuntu4 2:1.02.74-8
2014-03-14 15:32:42 upgrade libdevmapper-event1.02.1:i386 2:1.02.74-6ubuntu4 2:1.02.74-8
2014-03-14 15:32:43 upgrade libdevmapper1.02.1:i386 2:1.02.74-6ubuntu4 2:1.02.74-8
2014-03-14 15:32:44 upgrade dmsetup:i386 2:1.02.74-6ubuntu4 2:1.02.74-8
How can I get only the name of the packages by means of grep, awk or whatever tool?