I have a JSON array of jobs with status and error fields. I can filter to failed ones, but I want a count per distinct error message. group_by gives me arrays of arrays and I lose the key.
jq: group failed jobs by error
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group_by(.error) | map({error: .[0].error, n: length}). The .[0] picks the first element of each group to read the key from.
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group_by(.error) | map({error: .[0].error, n: length}). The .[0] picks the first element of each group to read the key from.
That's exactly it, thank you. Pasted the full command in a snippet for next time.
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