You can learn how to use SCP to transfer files securely in Linux in a tutorial published by MakeTechEasier.
How to Securely Transfer Files in Linux Using SCP
When transferring files to a remote Linux server, you have a few options. One of the best way is to use a program called Secure Copy, or SCP, that runs over the SSH protocol to quickly transfer files over your network to a remote system. This tutorial shows you how to transfer files securely using SCP in Linux.
How to Securely Transfer Files in Linux Using SCP