@camelia yes. Actually you can shorten it somewhat, which may please
@bogdanw, to:
softwareupdate --history |grep Gatek
on my current machine that will output the following:
Gatekeeper Configuration Data 181 28/08/2019 at 17:14:29
Gatekeeper Configuration Data 174 01/08/2019 at 08:24:31
Gatekeeper Configuration Data 173 23/07/2019 at 17:21:12
Gatekeeper Configuration Data 172 17/07/2019 at 19:30:40
Gatekeeper Configuration Data 171 03/07/2019 at 07:54:27
Gatekeeper Configuration Data 170 25/06/2019 at 18:54:03
Gatekeeper Configuration Data 169 18/06/2019 at 05:13:21
Gatekeeper Configuration Data 167 04/06/2019 at 09:52:26
Gatekeeper Configuration Data 166 13/05/2019 at 20:24:02
Gatekeeper Configuration Data 165 18/04/2019 at 20:31:59
Gatekeeper Configuration Data 164 26/03/2019 at 07:54:44
Gatekeeper Configuration Data 163 21/02/2019 at 07:46:22
Gatekeeper Configuration Data 162 07/02/2019 at 23:54:02
Gatekeeper Configuration Data 160 23/01/2019 at 09:12:24
Gatekeeper Configuration Data 158 09/01/2019 at 18:43:21
Gatekeeper Configuration Data 157 06/12/2018 at 23:59:53
Gatekeeper Configuration Data 156 31/10/2018 at 15:15:29
Gatekeeper Configuration Data 155 25/09/2018 at 20:33:12
Gatekeeper Configuration Data 154 08/09/2018 at 15:39:51
If you only want to see the last installation of Gatekeeper (or whatever) you can add a -m flag like so
softwareupdate --history |grep -m 1 Gatek
which would output:
Gatekeeper Configuration Data 181 28/08/2019 at 17:14:29
voilà HTH.