Unix cron script to automatically disconnect Bitcoin Knots peers.

knots-slayer.sh

#!/bin/bash

# Get peer info and disconnect any peer with "knots" in the subver field
bitcoin-cli getpeerinfo | jq -r '.[] | select(.subver | ascii_downcase | contains("knots")) | .id' | while read peer_id; do
    if [ ! -z "$peer_id" ]; then
        echo "Disconnecting peer ID $peer_id with knots client"
        bitcoin-cli disconnectnode "" "$peer_id"
    fi
done