#

#======================================================================#
#This section tests for the file device.log, and removes if it exists  #
#======================================================================#
if [ device.log ]
then
rm device.log
fi
cat adoa.txt | while read device              
do
#======================================================================#
#This section will pull the ip address from DNS and assign the value   #
#To the variable "ip".  It will then test to see if the variable "ip"  #
#Has a Null (value of no length) or if it contains data. If a value is #
#Found it is stored in the variable "dns" If no data is found in the   #
#variable "ip" it will assign the string value of "Not in DNS"  to the #
#variable "dns"                                                        #
#======================================================================#
#
	ip=`(host $device | awk ' /has/ {print $4}')` 
	if [ "$ip" ]
	then 
		dns="$ip"
#
#		
#
#
#======================================================================#
#This section will Ping the variable "device" and record a yes or no   #
#Answer in the variable "routable". Error messages such as unknown     #
#Host are sent to /dev/null to prevent them from displaying            #
#======================================================================#
#
	answer=`(ping -c 1 -q -w 2 -n  $device 2>/dev/null | grep received | awk '{print $4}')`
	if
        [ $answer = 0 ];
        then answer="NO"
        else answer="YES"
        fi
#
#======================================================================#
#This section will test the read and read/write snmp community strings #
#Yes or No answer is stored in the variable "snmpread" and "snmpwrite" #
#This section also collects the device system name and stores it in    #
#the variable "routername"
#======================================================================#
#
	if
	[ $answer = "YES" ];
        then

	routername=`(snmpget -t 2 -r 0 -Oqv -Os -v 2c -c (Read only community string) $device 2>/dev/null  SNMPv2-MIB::sysName.0)`
        if [ "$routername" = "" ];
        then snmpread="NO"
	routername="N/A"
        else snmpread="YES"
        fi
        snmpwrite=`(snmpget -t 2 -r 0 -Oqv -Os -v 2c -c (Read Write community string) $device 2>/dev/null  SNMPv2-MIB::sysName.0)`
        if [ "$snmpwrite" = "" ];
        then snmpwrite="NO"
        else snmpwrite="YES"
        fi

if [ "$snmpwrite" = "YES" ];
then
devicenumber=`(snmpwalk -v 2c -OQs -c  (Read Write community string) $device  1.3.6.1.2.1.4.20.1.2 | grep $ip | awk ' /=/ {print $3}')`
interface=`(snmpwalk -v 2c -OQs -c  (Read Write community string) $device  1.3.6.1.2.1.2.2.1.2 | grep -w ifDescr.$devicenumber | awk '/=/ {print $3}')`
else
interface="N/A"
fi
#======================================================================#
#this section takes the values of the variables and outputs them to    #
#the file device.log and echos the values on the screen as well        #
#this section is for the ouput of completed script                     #
#======================================================================#
echo "$device,$routername,$dns,$answer,$snmpread,$snmpwrite,$interface" >> device.log 
echo "$device,$routername,$dns,$answer,$snmpread,$snmpwrite,$interface"

	

#
#======================================================================#
#when device is not reachable by  ping this section assigns values to  #
#variables not tested and exits script                                 #
#======================================================================#
#
        
          else
                snmpread="NO"
                snmpwrite="NO"
		interface="N/A"
		routername="N/A"
echo "$device,$routername,$dns,$answer,$snmpread,$snmpwrite,$interface" >> device.log
echo "$device,$routername,$dns,$answer,$snmpread,$snmpwrite,$interface"

fi

#
#=====================================================================#
# If device is not is DNS this section assigns values to variables    #
# Not tested and exits script                                         #
#=====================================================================#
#

 else
                dns="Not in DNS"
                answer="NO"
                snmpread="NO"
                snmpwrite="NO"
		interface="N/A"
		routername="N/A"
echo "$device,$routername,$dns,$answer,$snmpread,$snmpwrite,$interface" >> device.log
echo "$device,$routername,$dns,$answer,$snmpread,$snmpwrite,$interface"
  
fi


done