bash.generate.random.alphanumeric.string.sh

#!/bin/bash
# bash generate random alphanumeric string
#

if [[ "$OSTYPE" == "linux-gnu" ]]; then
# bash generate random 32 character alphanumeric string (upper and lowercase) and 
  NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)

# bash generate random 32 character alphanumeric string (lowercase only)
  cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1

elif [[ "$OSTYPE" == "darwin"* ]]; then
  openssl rand -base64 32
else
        echo "UNKNOWN"
fi