he

q1/q1.sh

+#!/bin/bash
+
+ 
+
+read var
+
+ 
+
+s=0
+
+ 
+
+while [ $var -gt 0 ] 
+do 
+    k=$(( $var * $var ))  
+   
+   var=$(( $var - 1 )) 
+     
+    s=$(( $s + $k ))  
+done
+
+ 
+
+echo $s

q2/q2.sh

+#! /bin/bash
+
+file="$1"
+
+ls -F "$file"|grep /|wc -l

q3/q3.sh

+#!/bin/bash
+
+ 
+
+grep "5" q3_in.txt > q3_out.txt
+sort -n -o q3_out.txt q3_out.txt

q4/q4.sh

+#!/bin/bash
+
+ 
+
+SUM=0
+n=0
+while read LINE
+do
+SUM=`expr $SUM + $LINE`
+ ((n=n+1))
+done < q4_in.txt
+
+ 
+
+echo $SUM
+echo $n
+echo "scale=2;$SUM/$n"|bc

readme.txt

+Bandana Raviteja(203050084)
+Question:2
+Reference:
+https://www.tecmint.com/wc-command-examples/
+https://unix.stackexchange.com/questions/1645/is-there-any-option-with-ls-command-that-i-see-only-the-directories#:~:text=If%20you%20want%20to%20see,argument%20(%20ls%20%2DCFR%20).
+
+
+Abhishek Chugh(203050046)
+Question 1 &3
+Reference:
+https://stackoverflow.com/questions/43554862/how-to-calculate-median-for-each-row-from-file-in-bash-shell-script
+
+
+Navneet Ranjan(203050106)
+Question:4
+Reference:
+Stackoverflow
+