Today I learned that you can create an empty .hushlogin file in your home directory on macOS and Linux to hide the login message you get when starting up a new terminal window or tab.
I tried this on macOS but it should work on Linux too.
For example, when I start up a new terminal window/tab I see the following message:
After I create the .hushlogin file in my home directory, the login message goes away. First I created the file:
touch ~/.hushlogin
Then I opened a new terminal window to verify that the message no longer shows up:
