snmpwalkcount.sh

#!/bin/bash
#
# This script counts the number of returned lines from an SNMP walk.
#
COMMUNITY="$1"
IP="$2"
OID="$3"
FILTER="$4"

# Disable mibs to save time
export MIBS=

# Do the walk and count matching lines
snmpwalk -t 5 -On -v 2c -c "$COMMUNITY" "$IP" "$OID" | grep -v '(^$|No Such Instance currently exists at this OID$)' | grep -c "$FILTER"