$ [sudo] pip install gist-delete

$ [sudo] npm i -g gist-delete

$ export GITHUB_TOKEN="<GITHUB_TOKEN>"

$ gist-id <id1> <id2>

$ pip install gist-id gists-id
$ python -m gists_id | grep -v "$(find ~/git/gists -maxdepth 1 -exec gist-id {} \; 2> /dev/null)" | xargs gist-delete;: