Added check for interactive shell to README.

README.adoc

@@ -51,6 +51,14 @@ Alternative way to include .sshrc by detecting SSH connection.
 [source,bash]
 ----
 # User specific aliases and functions
+
+# test if the prompt var is not set
+# See https://unix.stackexchange.com/questions/154395/running-scp-when-bashrc-of-remote-machine-includes-source-command
+if [ -z "$PS1" ]; then
+    # prompt var is not set, so this is *not* an interactive shell
+    return
+fi
+
 if [ -f ~/.sshrc ] && [ -z "$SSH_CLIENT" ]; then
     echo "Not a ssh connection"
 else