Fetches an entity's zkill history and displays number of kills/losses by hour in JSON format.

kills.sh

#!/bin/bash

entity_kind=""
entity_id=""

usage() {
    echo "Usage: $0 [-h] [-a <allianceID> | -c <corporationID> | -p <characterID>]"
    echo
    echo "One option (-a, -c, -p) must be selected."
}

while getopts "ha:c:p:" opt; do
    case "$opt" in
        a ) entity_kind="alliance"
            entity_id="$OPTARG"
            ;;
        c ) entity_kind="corporation"
            entity_id="$OPTARG"
            ;;
        p ) entity_kind="character"
            entity_id="$OPTARG"
            ;;
        \?,h ) 
            usage
            exit
            ;;
    esac
done

if [[ $entity_kind == "" || $entity_id == "" ]]; then
	usage
	exit 1
fi

kills_file="kills_${entity_kind}_${entity_id}.json"


if [ -f $file ] && test `find "$kills_file" -cmin -10`; then
    echo "Too soon to fetch new data."
    echo
    echo "Last fetched $((`stat -c %Y "$kills_file"` - `date +%s`)) seconds ago. Waiting ten minutes; 600 seconds."
    echo
else
    echo > "$kills_file"
    echo "Downloading latest kills..."
    echo
    for i in {1..10}; do
        curl -L "https://zkillboard.com/api/no-items/no-attackers/limit/200/${entity_kind}ID/${entity_id}/page/${i}/" >> "$kills_file" 2>> kills_error.log
    done
fi

jq -s 'flatten(1) | [.[].killmail_time
        | capture("T(?<time>[0-9]+):")
        | .time
        | {"string": (. + ":00"), "number": (. | tonumber)}]
     | {
          "avg": ([.[].number] | add / length)
        , "counts": ([.[].string] | [group_by(.) | .[] | {(first): length}]
                 | reduce .[] as $item ({}; . *= $item))
       }' < "$kills_file" 2>> kills_error.log