Download all attachments from a Discord data export via Python, awk & wget

README.txt

The above can be used to download all your attachments out of a Discord data export.
Attachments are downloaded one by one, and placed alongside the channels they were sent in.
The attachment filename is the message ID and the attachment filename, joined by an underscore.

It is safe to re-run the download script should it have been aborted,
though if aborted in the middle of a download that file may only be partial.
The script makes no attempt to re-download files that are already downloaded.

download.sh

#!/bin/bash

for dir in c*; do
  mkdir -p "$dir/attachments"
  for url in $(python3 print_attachment_urls.py < "$dir/messages.csv"); do
    oname="$dir/attachments/$(echo "$url" | awk -F '/' '{ print $6 "_" $7 }')"
    if [ ! -e "$oname" ]; then
      wget -nv --user-agent="" "$url" -O "$oname"
    fi
  done
done

print_attachment_urls.py

import csv
import sys


for row in csv.reader(sys.stdin, delimiter=','):
    if row[-1] and row[-1] != 'Attachments':
        for url in row[-1].split():
            print(url)