inventory.sh
#!/bin/sh
#
#    inventory.sh -- a script to extract valuable information
#                    from a list of routers. (Name, Type, IOS version)       
#
#
# Set behaviour
public="ORARO"
workingdir="/home/cisco"
#
LOG=$workingdir/RESULT.csv
infile=$workingdir/RTR_LIST
snmp="/usr/local/bin/snmpget -v1 -c $public"
#
while read device
do
  $snmp $device sysName.0 > /dev/null
  if [ "$?" = "0" ] ; then
    rtr=`$snmp $device .1.3.6.1.4.1.9.2.1.3.0 | cut -f2 -d\" `
    type2=`$snmp $device .1.3.6.1.4.1.9.9.25.1.1.1.2.3 | cut -f2 -d$ `
    ios=`$snmp $device .1.3.6.1.4.1.9.9.25.1.1.1.2.5 | cut -f2 -d$ `
    prot=`$snmp $device .1.3.6.1.4.1.9.9.25.1.1.1.2.4 | cut -f2 -d$ `
    echo "$device, $rtr, $type2, $ios, $prot" >> $LOG                 
  fi
done < $infile