brent it's an alias set up in the .bashrc file, so it's no different than going to the terminal and typing out the command for say sudo eopkg up. You just have to edit the file, I did sudo nano .bashrc and added the alias. After it's set up, just open a terminal and run your alias, if it requires sudo privilege you have to enter your password too.
Pretty sure this is how I have it set up, I can verify later when I get home if you'd like.
alias updateall="sudo eopkg up -y && sudo eopkg bi --ignore-safety https://raw.githubusercontent.com/getsolus/3rd-party/master/network/web/browser/google-chrome-stable/pspec.xml && sudo eopkg it google-chrome-*.eopkg;sudo rm google-chrome-*.eopkg && flatpak update -y && sudo snap refresh"
