unixowe-systemy-operacyjne/tabledata/ex1.sh

#!/bin/bash

# iterating line-by-line over the input file
#numOfPeople=`cat $1 | grep $2 | wc -l`
#echo "Num. of people from $2 is $numOfPeople"

echo "Podaj nazwę pliku z bazą danych"
read inPlikWej
echo "Podaj minimalny wiek"
read inWiek

w=0

declare -A kraje

# iterating line-by-line
while read line
do
	
name=`echo $line | cut -d " " -f 1`
age=`echo $line | cut -d " " -f 2`
country=`echo $line | cut -d " " -f 3`

if [ $name != "#" ]
then

w=$((w + 1))

if [ $age -ge $inWiek ]
then
	kraje["$country"]=$((kraje["$country"] + 1))
	echo "Person $name (from $country) is $age years old"
fi

fi

done < $inPlikWej

for key in ${!kraje[@]}; do echo "From $key there is ${kraje["$key"]} persons"; done