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codingmonks/q4/q4.sh

+#!/usr/bin/bash
+grep -oP '\S+' q4_in.txt > col.txt
+sort -n col.txt > sorted.txt
+i=0
+sum=0
+nums=$(<sorted.txt)
+array[0]=0
+for n in $nums; do
+	sum=$((sum+n))
+	i=$((i+1))
+	array[$i]=$n
+done
+echo "Mean=" $(echo "scale=3;($sum/$i)" | bc) 
+#echo ${array[*]} array
+if [ $(($i % 2)) -ne 0 ]
+then
+	middle=$[$((i/2))+1]
+	echo "Median=" ${array[$middle]}
+else
+	ind1=$(($i/2))
+	ind2=$((ind1+1))
+	num1=${array[$ind1]}
+	num2=${array[$ind2]}
+	final=$((num1+num2))
+	echo "Median=" $(echo "scale=3;($final/2)" | bc)
+fi
+rm sorted.txt
+rm col.txt