$ git diff --check
exit=0
$ git diff --cached --name-only
exit=0
$ sha256sum docs/model-extensions/RFC.md
2ce2becbc0bf0f844702b624de6827c2bae6eba921ab8a1ea883659fa2f96448  docs/model-extensions/RFC.md
exit=0
$ du -sh docs/model-extensions/evidence/card06
544K	docs/model-extensions/evidence/card06
exit=0
$ find docs/model-extensions/evidence/card06 -type f -size +5M
exit=0
