how to download oracle database to a remote server
Using WGET to download My Oracle Support Patches (Doc ID 980924.1). 

wget --http-user=&lt;username&gt; --http-password=&lt;password&gt; --no-check-certificate --output-document=filename "paste the copied download address here in quotes"


Also there are a bit different instructions in https://blogs.oracle.com/supportportal/entry/use_of_wget_instead_of_downloa but I believe things a bit changed now when flash MOS page is retired.