base64 for Multi-line Environment Variables
In order to save an environment variable with newlines, the variable can be base64 encoded before saving and then unencoded during the CircleCI build.
cat example.txt | base64 -w 0
That value can then be copied and pasted into the CircleCI dashboard and used during a CircleCI build:
MY_UNENCODED_VALUE=$(echo $MY_ENCODED_VALUE | base64 -d)
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