CS 699 Week 2

week2/q1/q1.sh

+#!/bin/bash
+sum=0
+
+if [ $# != '1' ]
+then 
+	echo 'Error: Invalid arguments'
+	exit
+fi
+
+for((i=1;i<= $1;i++))
+do
+	sum=$(($sum+$i*$i))
+done
+echo $sum
\ No newline at end of file

week2/q2/q2.sh

+#!/bin/bash
+#echo "Script param: $1";
+#echo "=============================";
+#echo "pwd:";
+#pwd;
+#echo "=============================";
+#echo "find d1 -maxdepth 1 -type d";
+#find $1 -maxdepth 1 -type d;
+#echo "=============================";
+#echo "find d1 -maxdepth 1 -type d | wc -l";
+#find $1 -maxdepth 1 -type d | wc -l;
+ls -l $1 | grep -c ^d;
+#echo "=============================";
+#count = $(find $1 -maxdepth 1 -type d | wc -l);
+#count = count - 1;
+#echo "$count";

week2/q3/q3.sh

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

week2/q4/q4.sh

+#!/bin/bash
+sums=0
+counts=0
+arr=()
+sort q4_in.txt > tem.txt
+while read p
+do 
+    arr[counts]=$p
+    counts=`expr $counts + 1`
+    sums=`expr $sums + $p`
+done < tem.txt
+echo `expr $sums / $counts`
+rem=$(( $counts % 2 ))
+if [ $rem -eq 0 ]
+then
+  echo "$(( ( arr[$(($counts/2))] + arr[$(($counts/2-1))] ) / 2 ))"
+else
+  echo "${arr[$counts /2]}"
+fi
+
+
+rm tem.txt
+