@daviddavis reminded me of a nice utility I learned about recently: jq[1].
I use it quite often in scripts involving container images where I need the
long sha256 to reference them.

sudo skopeo inspect --raw docker-daemon:
satellite.example.com:5000/examplecorp-docker_hub-alpine:3.4 | jq '.config
| .digest'

Enjoy!

[1] https://stedolan.github.io/jq/tutorial/

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