shell script to auth against keystone essex

gistfile1.txt

#!/bin/bash
set -e

[[ $1 == "-c" ]] && {
    CONTINUE=yes
    shift
}

URL=$1
USER=$2
PASSWORD=$3

if [[ $URL != http* ]];then
    URL="http://$URL:5000/v2.0/tokens"
fi

[[ -z $PASSWORD ]] && {
    echo "$0 URL USER[:TENANT] PASSWORD"
    exit 1
}

if [[ $USER == *:* ]];then
    TENANT=${USER%%:*}
    USER=${USER##*:}
else
    TENANT=$USER
fi

#curl -s -d "{\"auth\": {\"passwordCredentials\": {\"username\": \"$1\", \"password\": \"$2\"}}}" -H 'Content-type: application/json' http://$3:5000/v2.0/tokens | python -m json.tool
curl -s -d "{\"auth\": {\"tenantName\": \"$TENANT\", \"passwordCredentials\": {\"username\": \"$USER\", \"password\": \"$PASSWORD\"}}}" -H 'Content-type: application/json' $URL >/tmp/.auth.json

grep -q 'access' /tmp/.auth.json || {
    curl -v -d "{\"auth\": {\"tenantName\": \"$TENANT\", \"passwordCredentials\": {\"username\": \"$USER\", \"password\": \"$PASSWORD\"}}}" -H 'Content-type: application/json' $URL 
    echo
    exit
}

python -mjson.tool < /tmp/.auth.json > /tmp/.pauth.json
TOKEN=$(grep -2 "token" /tmp/.pauth.json|grep id|sed 's/.* "//;s/".*//')
URL=$( grep internalURL /tmp/.pauth.json|grep 8080|sed 's/.*: .//;s/".*//')
cat /tmp/.pauth.json
echo "curl -H 'X-Auth-Token: ${TOKEN}' ${URL}"
[[ -n ${CONTINUE} ]] || exit
curl -v -H "X-Auth-Token: ${TOKEN}" ${URL}
echo