First Commit

q1/q1.sh

+#!/bin/sh
+
+a=1
+sum=0
+temp=0
+while [ $a -lt `expr $1 + 1` ]
+do
+#   echo $a
+   temp=`expr $a \* $a`
+   sum=`expr $sum + $temp`
+   a=`expr $a + 1`
+done
+echo "$sum"

q2/q2.sh

+function numDirs {
+    if [ -d $1 ]; then
+        ls -lR $1 | grep -v ":$" | grep "^d" | wc -l
+    else
+        echo "Directory doesnot exist!"
+    fi    
+}
+
+numDirs $1

q3/q3.sh

+#!/bin/bash
+
+grep "[5]" q3_in.txt | sort > q3_out.txt
\ No newline at end of file