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 plik z danymi"
read inPlik
echo "Podaj wiek"
read inWiek
echo "Podaj kraj"
read inKraj

ile=0
wszyscy=0

# 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

wszyscy=$((wszyscy+1))

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

fi

done < $inPlik

#echo "There is $ile people from $inKraj (from all $wszyscy people)"
echo "There is `echo "scale=2; $ile/$wszyscy*100.0" | bc -l`% people from $inKraj"