manage files download from developer.apple.com

Downloading large files from Apple sucks. Here's how to apparently download using terminal with resume option ....

How to download files from Apple Developer Center:

1. Open Terminal
2. run gem install adcdownload
3. Open https://developer.apple.com/down... and copy the URL of a file.
4. run adcdownload get http://adcdownload.apple.com/…/file.dmg
5. You will be asked for your Apple ID and password.
6. Your download should start. If your connection drops, re-run the same command to continue the download.

https://github.com/MagLoft/adcdownload

this information from 

Tobias Strebitzer

https://www.quora.com/How-do-you-download-Xcode-without-the-App-Store