$ [sudo] pip install gists_id

$ export GITHUB_TOKEN="<GITHUB_TOKEN>"

$ python -m gists_id

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