twitch_comments.sh

#!/usr/bin/env bash

JQ="jq"
TEMP="temp.json"
COMMENTS="comments.txt"
CURSOR=""
PARAM=""
echo "" > ${TEMP}
echo "" > ${COMMENTS}

while [ "$CURSOR" != "null" ]
do
    [ -z "$CURSOR" ] && echo 1 || PARAM="cursor=$CURSOR"
    curl "https://api.twitch.tv/v5/videos/$VIDEO/comments?$PARAM" -H "client-id: $CLIENT_ID" --compressed > ${TEMP}
    ${JQ} -r '.comments|.[]|"[" + (.content_offset_seconds/3600|floor|tostring) + ":" + (.content_offset_seconds%3600/60|floor|tostring) + ":" + (.content_offset_seconds%60|floor|tostring) + "] " + .commenter.name + ": " + .message.body' ${TEMP} >> $COMMENTS
    CURSOR=`${JQ} -r "._next" ${TEMP}`
done
echo "DONE"

There is an token error when adding a channel witch contains topic Food \u0026 Drink
solution: TOKEN="echo $RESP | $JQ '.token' | sed 's/\\\\"/"/g' | sed 's*\\\\**' | sed 's/\(^.\)//g' | sed 's/\(.$\)//g'"