Thanks and advice for others about getting cookies and GNU versions of utilities

[crcts]

Just downloaded thousands of photos -- thanks for writing this script!

Two points of advice:

• Calls for comm and date both expect GNU versions. On MacOS 13.7.7 I needed to use homebrew to install coreutils to use GNU versions, then modified my PATH variable to look at those first.
• I used this Firefox extension to get my cookie.txt. Didn't have to do anything special after signing in to classroom.kindercare, just exported all cookies from that tab and the script took care of the rest. https://addons.mozilla.org/en-US/firefox/addon/get-cookies-txt-locally/