How to get a reservation at State Bird Provisions

statebird.sh

set -e

mail() {
    echo "$@" |
    /usr/bin/mail -a"From: Richard Crowley <r@rcrowley.org>" -s"State Bird Provisions" "1234567890@vtext.com"
    echo "$(date): there was a reservation!" >&2
}

TMP="$(mktemp)"
trap "mail \"FAILURE\"; rm -f \"$TMP\"" EXIT INT QUIT TERM

while true
do
    curl -sv "http://rez.urbanspoon.com/reservation/start/2086" >"$TMP" 2>&1
    if ! grep -q "Unfortunately, there are no web reservations available for this restaurant at this time." "$TMP"
    then mail "http://rez.urbanspoon.com/reservation/start/2086"
    fi
    if ! grep -q "HTTP/1.1 200 OK" "$TMP"
    then mail "$(grep "^< HTTP/1.1" "$TMP" | cut -c"3-")"
    fi
    sleep 60
done