le script

curl -H "Accept: application/json" https://bitnodes.io/api/v1/snapshots/latest/ -o /tmp/bitnodes.json
cat bitnodes.json| jq -r '.nodes | to_entries | .[].value[1]' > /tmp/useragents.txt
cat /tmp/useragents.txt |sed 's/^.*Knots.*$/Knots/;s/.*bcoin.*/bcoin/;s/.*btcd.*/btcd/;s/.*CKCoinD.*/ckcoind/;s/.*utreexod.*/utreexod/;s/.*Satoshi:.*/Core/' | sed 's/\/.*/other/' | sort | uniq -c | sort -n