make-aliases.sh

#!/usr/bin/env bash
function aboutMe {
                myName=$(basename "$0")
                echo -e "\nAlias extruder for RTR hostnames"
                echo -e "Usage:\n\t$myName countryNumber"
                echo -e "Example:\n\t$myName 49\n"
}

function doStuff () {
        for n in {1..254}
        do
                if (( $n % 4 == 2 ))
                        then
                        countryNumber=$1
                        targetAddress=10.223.$countryNumber.$((n))
                        remoteHostname=$(snmpget -v 2c -c $snmpPassword $targetAddress iso.3.6.1.2.1.1.5.0 2> /dev/null | awk -F"\"" '{print $2}' | sed 's_.net.dsv.com__')
                        if [[ $remoteHostname == *"RTR"* ]]
                                then
                                echo "alias $remoteHostname='ssh $targetAddress'"
                        fi
                fi
                # { hostname=$(echo "alias $(/var/lib/rancid/bin/clogin -c "show start | i hostname" $targetAddress )" | grep -e "^hostname" | sed 's/(\r//g' | sed 's/hostname //g'); echo "alias $(echo $hostname | sed 's/\r//')=\"ssh $targetAddress\""; }
        done
}

snmpPassword="insert-your-secret-snmp-stuff-here"

if [ -z "$1" ]; then   ## Check for args, and if none, show "about" ditty
        aboutMe
        exit
else
        doStuff "$1"
fi