This article explains how to send a curl command to the proxy with authentication.
Below is an example on how to send a curl command:
curl -U username:password -x myproxy:8080 http://www.example.com --proxy-ntlm
Note: How to run curl commands on Windows:
From the Command Prompt, navigate to the location where the executable file was placed. To enter to the folder you need to use the "cd" command following the location of the folder which contains the executable file as you can see below.
cd programs
Expected location to be shown
C:\Users\{your_user}\programs>
To verify if you are able to run curl commands with the command prompt, test functionality by executing the command below:
curl --help
At this point, you should receive help info related to the curl command.