MAC Address Generation from FQDN

macgen.sh

#/bin/bash
# title         :MacGen
# description   :Randomly Generate MAC from FQDN
# author        :mchangrh
# source        :https://repl.it/@mchangrh/MacGen
#==========

# Read Hostname
read -p 'Enter Hostname:' host
# Establish Prefixes
# Locally Administered Addresses
LAA1='02:00:00'; LAA2='06:00:00'; LAA3='0A:00:00'; LAA4='0E:00:00'
# Hyper-V and VMM Virtual Machines
MSFT1='00:03:FF'; MSFT2='00:0D:3A'; MSFT3='00:15:5D'; MSFT5='00:17:FA'; MSFT6='00:50:F2'
# VMWare Virtual Machines
VMWARE1='00:58:69'; VMWARE2='00:0C:29'; VMWARE3='00:1C:14'
# Choose Prefix
select range in LAA{1..4} MSFT1{1..6} VMWARE{1..3}; do
  # Set prefix to variable with maching name
  prefix=${!range}; break; done
# Generate Random MAC
echo $host|md5sum|sed 's/^\(..\)\(..\)\(..\).*$/'$prefix':\1:\2:\3/'

# BASED OFF OF SCRIPT FROM:
# https://serverfault.com/a/299563