SCP Command Unable to Transfer Files Only For Specific User

Applies to:  

Oracle Cloud Infrastructure - Version N/A and later 

Linux x86-64 – Oracle Linux

Symptoms

When  using SCP to copy  files to a destination instance for a specific  user, the  destination host's  SSH banner shows correctly but the file

 transfer does not occur.

An SSH connection for the same user and destination works correctly.

Cause

In this case, the issue was caused by the presence of a source command in the destination user’s .bashrc file

$  cat /home/<username>/.bashrc

...

source  /path/to/script .sh

...

This is a well-known behavior. Sourcing files inside .bashrc can break scp or other non-interactive ssh sessions, depending on the output of the sourced files/scripts.