You need a "CompanyName.txt" consist of company names as here; https://github.com/projectdiscovery/chaos-public-program-list/blob/master/bugbounty-list.json but you need to save the names all lowercase and all space character should be replaced with underscore(_)
Inside of CompanyName.txt
verizon_media
vimeo
uber
digitalocean
Usage:
bash chaos.sh
You can use cronjob to run it automatically everyday.
After the process completed,
cat */*.diff will give you all daily new subdomains. Backup the differences.diff files for next day and Happy Hacking !