Performance to ping Google

ping-google.sh

#!/bin/sh

IKEY='<Instrumentation-Key-Here>'

while true
do
    TIME=$(date +%Y-%m-%dT%H:%M:%S%z)
    PING_OUTPUT=$(ping -q -c 1 -w 3 www.google.com)
    PING_RESULT=$?
    DELAY=$(echo $PING_OUTPUT | sed -r -n 's/^.+ rtt .+ = (.+) ms$/\1/p' | cut -d '/' -f 1)
    METRICS=$([ $PING_RESULT -eq 0 ] \
        && echo '{"name":"ping-success","value":1},{"name":"ping-time","value":'$DELAY'}' \
        || echo '{"name":"ping-success","value":0}')

    echo "[$TIME] $METRICS"
    curl --silent -d \
        '{"name":"MetricData",
          "time":"'$TIME'",
          "iKey":"'$IKEY'",
          "data":{"baseType":"MetricData","baseData":{"metrics":['$METRICS']}}}
        ' https://dc.services.visualstudio.com/v2/track

    # Wait one minute
    echo ''
    sleep 60s
done