You can use the following command to display the install date and time of all the packages installed on your system:
rpm -qa --last
For example :
# rpm -qa --last | more aide-0.14-11.el6.x86_64 Tue 22 Aug 2017 12:57:07 AM IST tzdata-java-2017b-1.el6.noarch Tue 22 Aug 2017 12:27:22 AM IST trace-cmd-2.2.4-4.el6.x86_64 Tue 22 Aug 2017 12:27:22 AM IST ql2500-firmware-7.03.00-1.el6_5.noarch Tue 22 Aug 2017 12:27:22 AM IST hal-info-20090716-5.el6.noarch Tue 22 Aug 2017 12:27:22 AM IST zip-3.0-1.el6_7.1.x86_64 Tue 22 Aug 2017 12:27:21 AM IST ........
You can grep for a specific rpm name and find out the time of installation only for that particular package. For example to find the installation time of all packages with string kernel in them (Returns the install date and time for all packages with kernel in their name, such as the kernel, kernel-utils, etc.):
# rpm -qa --last | grep kernel dracut-kernel-004-409.el6_8.2.noarch Tue 22 Aug 2017 12:26:53 AM IST libreport-plugin-kerneloops-2.0.9-33.el6.x86_64 Tue 22 Aug 2017 12:26:23 AM IST abrt-addon-kerneloops-2.0.8-43.el6.x86_64 Tue 22 Aug 2017 12:26:23 AM IST kernel-2.6.32-504.el6.x86_64 Fri 15 Aug 2014 10:00:46 PM IST kernel-firmware-2.6.32-504.el6.noarch Fri 15 Aug 2014 10:00:42 PM IST kernel-headers-2.6.32-504.el6.x86_64 Fri 15 Aug 2014 09:58:41 PM IST
For information about a specific package, specify the package_name in the command:
# rpm -q --last [package_name]
For example, you can use this command to look at the Firefox package installation time :
# rpm -qa --last firefox firefox-52.2.0-1.el6_9.x86_64 Tue 22 Aug 2017 12:27:05 AM IST
Formatting the output
We can also format the output of the “rpm -qa –last” command as per our needs. For example you can list the installation time for Firefox RPM
# rpm -qa --queryformat '(%{installtime:date}) %{name}\n' firefox
(Tue 22 Aug 2017 12:27:05 AM IST) firefox
You can get a list of –queryformat Tags here.