Install aria2c and make sure aria2c is in your PATH.
Download files containing lists of URLs for all crawls from cc_list.txt:
./get_url_lists.sh
Select file lists you want to download files from. For instance, we sampled 10 random CC crawls to download:
ls warcpaths/|shuf -n 10 >cc_paths_shuffled_first10.txt
Generate download tasks for Aria2:
./generate_aria_input.sh cc_paths_shuffled_first10.txt >first10_warcs.lst
Run Aria2:
./run_aria.sh first10_warcs.lst
When finished or interrupted Aria2 will save unfinished downloads back to first10_warcs.lst. Rerun the last command to re-run downloading unfinished files.