I am facing the same challenge but script is throwing error . Is it resolved for you?

> put /sites/WalmartUSAssociateAnalytics/Exceptions%20File/sample.csv 
+HTTP/1.1
> Authorization: Basic XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+XXXXXX==
> User-Agent: curl/7.29.0
> Host: teams.wal-mart.com
> Accept: */*
> Content-Length: 13
> Expect: 100-continue
>
< HTTP/1.1 100 Continue
* We are completely uploaded and fine
< HTTP/1.1 403 FORBIDDEN
< Content-Length: 13
[download]