Kurna lista na dan

kursna-lista.sh

#!/bin/bash

DATE=$1
CURRENCY=${2:-usd}
KURS=${3:-sre}
FORMAT="json"
API_KEY="YOUR_API_KEY_HERE" # https://www.kursna-lista.info/moj-nalog/api-podesavanja
API_ENDPOINT="https://api.kursna-lista.info/$API_KEY/kl_na_dan/$DATE/$FORMAT"
CACHE="$HOME/.kursna_lista/$DATE.$CURRENCY.$KURS"

if [ ! -f "$CACHE" ]; then
    API_RESULT=$(curl $API_ENDPOINT 2>/dev/null) 
    VALUE=$(echo $API_RESULT | jq ".result.$CURRENCY.$KURS" | sed 's/"//g')

    re='^[0-9.]+$'
    if [[ "$VALUE" =~ $re ]]; then
        echo $VALUE > "$CACHE";
    else
        echo "Invalid value for date $DATE"
        echo "$API_ENDPOINT"
        exit
    fi
fi

VALUE=$(cat "$CACHE")
echo $VALUE

Usage: kursna-lista.sh dd.mm.yyyy [usd | eur | gbp | rub ...] [sre | kup | pro]
Example: kursna-lista.sh 11.11.2011 usd sre