So basically, I want to run these 2 commands but I want to check if the keys already existed. I know how to do the ifthenelse in bash but I'm not sure how to get the result and store in variable for me to check so that i can put it in the conditional operator. For example, if it already existed then I can skip downloading and adding it again.
Example 1 (–fetch-keys):
sudo apt-key adv --fetch-keys https://packages.microsoft.com/keys/microsoft.asc sudo tee /etc/apt/sources.list.d/vscode.list > /dev/null <<- END deb [arch=amd64] https://packages.microsoft.com/repos/vscode stable main END
Example 2 (–recv-keys):
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys B9A06DE3 sudo tee /etc/apt/sources.list.d/inkscape.list > /dev/null <<- END deb [arch=amd64] http://ppa.launchpad.net/inkscape.dev/stable-daily/ubuntu bionic main END