#!/bin/bash

INPUT="customers.txt"

while IFS= read -r client; do
  name="$(echo "$client" | xargs)"
  [ -z "$name" ] && continue

  if openstack project list -f value -c Name | grep -iF -- "$name" >/dev/null; then
    echo "FOUND  : $name"
  else
    echo "NOT FOUND : $name"
  fi
done < "$INPUT"