如何加快这个curl脚本并更快地响应

Question

I do have this script to get some variables hitting a server. The point is that is doing it slow and I have to run multiple times same script to get a decent rate of requests. How can I multiply number of threads with this curl script without needing to run it 4 or 5 times?

Also I would like to make it faster and performed, this is original one

    while ! grep "TokenException" output.txt > /dev/null
do
echo -e '\n'$(date +%x_%H:%M:%S:%3N) > output.txt
curl -s -H 'Host: host.com' -H "Cookie: session-token="$SESSION\" -H "x-amz-access-token: $token" -H "x-flex-instance-id: $flex" -H 'Accept: */*' -H 'User-Agent: Dalvik/2.1.0 (Linux; U; Android 7.1.1; Nexus 5X Build/N4F26T) RabbitAndroid/3.0.6778.0' -H 'Accept-Language: en-us' --compressed 'https://hostname.com/GetOffersForProvider?serviceAreaIds=16' >> output.txt
if grep -q "OFFERED" output.txt; then
    cat output.txt >> foundb.txt

      ./getlast.bat

    if [ ! -f pageflag.txt ]; then
         /usr/bin/php alert.php
        echo "paged" > pageflag.txt
    fi
sleep 0.05
fi
done

I modified to

while ! grep "TokenException" output.txt > /dev/null
do
echo -e '\n'$(date +%x_%H:%M:%S:%3N) > output.txt
curl -s -H 'Host: host.com' -H "Cookie: session-token="$SESSION\" -H "x-amz-access-token: $token" -H "x-flex-instance-id: $flex" -H 'Accept: */*' -H 'User-Agent: Dalvik/2.1.0 (Linux; U; Android 7.1.1; Nexus 5X Build/N4F26T) RabbitAndroid/3.0.6778.0' -H 'Accept-Language: en-us' --compressed 'https://hostname.com/GetOffersForProvider?serviceAreaIds=16' >> output.txt
if grep -q "OFFERED" output.txt; then
    cat output.txt >> foundb.txt

  ./getlast.bat

         /usr/bin/php alert.php
sleep 0.05
fi
done

Some suggestion to run on multi threading and faster even with sleep or another way to pause for milliseconds instead? Main point is that it should execute ./getlast.bat as fast as possible with variables caught from curl, but it has a time difference between data and getlast.bat execution of 2 seconds, too much

Answer 1

curl itself doesn't support multiple connections/threads and/or resume cancelled/stalled operations.

Use aria2 or something similar.