ex1.sh changed to compute statistical occurences of given person from a given country

tabledata/ex1.sh

@@ -11,6 +11,9 @@ read inKraj
 echo "Podaj minimalny wiek"
 read inWiek
 
+w=0
+sz=0
+
 # iterating line-by-line
 while read line
 do
@@ -22,11 +25,16 @@ country=`echo $line | cut -d " " -f 3`
 if [ $name != "#" ]
 then
 
+w=$((w + 1))
+
 if [ $country = "$inKraj" -a $age -ge $inWiek ]
 then
+	sz=$((sz + 1))
 	echo "Person $name (from $country) is $age years old"
 fi
 
 fi
 
 done < $inPlikWej
+
+echo "There is statistically `echo "scale=2; $sz/$w*100.0" | bc -l` % of such persons"

tabledata/people

@@ -1,8 +1,13 @@
 # name age country 
 Peter 		45	Poland
 Christof	34	Germany
+Jurgen	    24	Germany
 Paul		35	Poland
 Jacek		55	Poland
+Jurek       67  Poland
 Maria		23	France
 Jerry 		25	Germany
 Paul		60	France
+Frederic	9	France
+Agostino    20  Italy
+Toni        15  Italy