Update q4.sh

q4/q4.sh

+#!/usr/bin/bash
+
+array=()
+sum=0
+count=0
+while IFS= read -r line || [ -n "$line" ]
+do
+for word in $line
+do
+    array[$count]=$word
+    sum=`expr $sum + $word`
+    count=$((count+1))
+    done
+done <q4_in.txt
+avg=`expr $sum / $count`
+echo $avg
+
+arr2=($(echo ${array[*]}| tr " " "\n" | sort -n))
+
+i=`expr $count / 2`
+if [ $(($count%2)) -eq 0 ]
+then
+    a=${arr2[$i]}
+    b=${arr2[$(($i-1))]}
+    x=`expr $a + $b`
+    med=`expr $x / 2`
+else
+    med=${arr2[$i]}
+fi
+
+echo $med
\ No newline at end of file