add check.sh

chech.sh

+#!/bin/bash
+cp /dev/null text.txt
+echo "$1" >> text.txt
+num1=$( cut -d '-' -f 1 text.txt | cut -d '.' -f 4 )
+num2=$( cut -d '-' -f 2 text.txt | cut -d '.' -f 4 )
+if [ "$num1" -le "$num2" ] && [ "$num2" -le 256 ] && [ "$num1" -ge 1 ] ; then
+	for n in $(seq $num1 $num2) ; do
+		host=192.168.0.$n
+		ping -c $host &> /dev/null
+		if [ $? = 0 ] ; then
+			echo "$host is UP"
+		else
+			echo "$host is DOWN"
+		fi
+	done
+else 
+	echo "ERROR"
+fi