put verion sig in these messages?

Someone suggested that I should put a sig with the version and system in these messages,  and, I guess, the desktop type. I can create the version/system from a terminal with head -2 /etc/os-release but this doesn't get it into an email, nor does it mention that I'm using KDE. I think this is a useful suggestion, but I don't know how to implement it. (Using Thunderbird Mail.) doug@linux1:~> head -2 /etc/os-release NAME="openSUSE Tumbleweed" # VERSION="20201203" --dm