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#!/bin/bash
###
# ============LICENSE_START=======================================================
#
# ================================================================================
# Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
# ================================================================================
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ============LICENSE_END=========================================================
###
if [[ $# -ne 2 ]]; then
echo "Usage: wait-for-port hostname port" >&2
exit 1
fi
host=$1
port=$2
echo "Waiting for $host port $port open"
until telnet $host $port </dev/null 2>/dev/null | grep -q '^Connected'; do
sleep 1
done
echo "$host port $port is open"
exit 0
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