First, indicate your Infura API Key in bulksearch.js file. It's free and you can get one there: https://infura.io.

npm install

node bulksearch.js --file domainlist.txt --out results.txt

Here, domainlist.txt contains a list of our domains without the .eth extension:

Aarika
Abagael
Abagail
Abbe
Abbey
Abbi
[...]

The script will output the available domains in results.txt. Sometimes, domains are marked as available but there aren't, so test them manually on app.ens.domains afterwards.

You can also input a JSON file ["Aarika", "Abagael", "Abagail", ...] with a .json extension.

--index parameter can be used to start the script to a specific line in your input file, it can be useful for BIG file testing.

Pull requests are welcome.