Download iCloud link from Terminal

icloud-dl.sh

#!/bin/bash
# given "https://www.icloud.com/iclouddrive/<ID>#<Filename>
ID="...."
URL=$(curl 'https://ckdatabasews.icloud.com/database/1/com.apple.cloudkit/production/public/records/resolve' \
  --data-raw '{"shortGUIDs":[{"value":"$ID"}]}' --compressed \
  jq -r '.results[0].rootRecord.fields.fileContent.value.downloadURL')
curl "$URL" -o myfile.ext

Running

export URL=$(curl 'https://ckdatabasews.icloud.com/database/1/com.apple.cloudkit/production/public/records/resolve' \
   --data-raw '{"shortGUIDs":[{"value":"$ID"}]}' --compressed \
   jq -r '.results[0].rootRecord.fields.fileContent.value.downloadURL')

gives me

Warning: Invalid character is found in given range. A specified range MUST 
Warning: have only digits in 'start'-'stop'. The server's response to this 
Warning: request is uncertain.
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   195    0   163  100    32    573    112 --:--:-- --:--:-- --:--:--   684
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: jq

Edit:

So I needed to change the \ to a | like this:

export URL=$(curl 'https://ckdatabasews.icloud.com/database/1/com.apple.cloudkit/production/public/records/resolve' \
  --data-raw '{"shortGUIDs":[{"value":"$ID"}]}' --compressed |
  jq -r '.results[0].rootRecord.fields.fileContent.value.downloadURL')

but now echo $URL gives me

(base) wulff@VC02:/home/shared$ echo $URL
null

Does this work for shared icloud folders?

Is it possible to upload and/or delete with this method?