How to find out when Debian or Ubuntu package installed or ...
www.cyberciti.biz › faq › debian-ubuntu-linux-findNov 14, 2019 · See package installation date and time. Run the following grep command: # grep installed /var/log/dpkg.log. Sample outputs: 2019-11-01 19:42:58 status half-installed p7zip:amd64 16.02+dfsg-7 2019-11-01 19:42:58 status installed p7zip:amd64 16.02+dfsg-7 2019-11-01 19:43:00 status installed man-db:amd64 2.8.7-3 2019-11-01 19:44:12 status installed p7zip:amd64 16.02+dfsg-7 2019-11-01 19:44:12 status half-installed p7zip:amd64 16.02+dfsg-7 2019-11-01 19:44:12 status not-installed p7zip:amd64 ...