#!/bin/bash
read -p "Zadejte desetinne cislo: " cislo
while IFS=":" read struktura nazev rozliseni autori rok ; do
    if [[ $struktura = $2 ]] ; then
        sum=$(awk "BEGIN {print $rozliseni+$cislo; exit}")
        echo "struktura =" $struktura
        echo "nazev =" $nazev
        echo "rozliseni =" $rozliseni + $cislo "=" $sum
        echo "autori =" $(echo "$autori" | tr -s '[:lower:]' '[:upper:]')
        year="${rok:0:4}"; echo "rok =" "${year}"
    fi
done < <(cat $1)