Another post about the excellent Fish Shell, this time about how to configure it to automatically start "Screen"

Using the simple and clean fish shell language, I whipped up this little function, which will start screen, reattaching to the old session if possible, and starting a new one instead if not:

function screen_auto_attach
  if [ -z "$STY" ]
    exec screen -dR
  end
end

Then just call it from your .config/fish/config.fish shell with “screen_auto_attach”.