Greg Wooledge <wool...@eeg.ccf.org> writes: > On Mon, Jul 27, 2020 at 07:06:47PM +0000, Rodolfo Medina wrote: >> Just so simple. Now, I want to know when libiec61883-dev:i386 was installed >> into my system. To do so, I did: >> >> $ zgrep libiec61883-dev:i386 dpkg.log* >> dpkg.log:2020-07-23 08:07:12 status unpacked libiec61883-dev:i386 1.2.0-3 >> dpkg.log:2020-07-23 08:07:12 configure libiec61883-dev:i386 1.2.0-3 <none> >> dpkg.log:2020-07-23 08:07:12 status unpacked libiec61883-dev:i386 1.2.0-3 >> dpkg.log:2020-07-23 08:07:13 status half-configured libiec61883-dev:i386 >> 1.2.0-3 >> dpkg.log:2020-07-23 08:07:13 status installed libiec61883-dev:i386 1.2.0-3 >> >> In the output there isn't any `install' item... How come...? > > Most likely, because your oldest logs have been removed already.
Must be so because $ zgrep "2018.*.install " /var/log/dpkg* gives no output and so with 2017, 2016 and 2015, whereas for 2019 and 2020 there is output... rodolfo