Convert ISNI_persons.jsonld.gz into a JSONL file using command line tools sed and jq.

gistfile1.txt

# https://isni.org/page/linked-data/
# https://isni.oclc.org:2443/isni/public_export/ISNI_persons.jsonld.gz

wget https://isni.oclc.org:2443/isni/public_export/ISNI_persons.jsonld.gz

# The file I downloaded was full of the 0x1E character, or ^^ in ASCII.  This will strip that

sed 's/\x1E//g' ISNI_persons.jsonld > cleaned_ISNI_persons.jsonld

# Then use JQ to convert the file into the way more sane JSONL format. By default, it tries to read it all into 
# memory - so you will need to use the streaming version I found from : 
# https://stackoverflow.com/questions/49808581/using-jq-how-can-i-split-a-very-large-json-file-into-multiple-files-each-a-spec

jq -cn --stream 'fromstream(1|truncate_stream(inputs))' cleaned_ISNI_persons.jsonld > ISNI_persons.jsonl