Use underscore in script filename as well.

bin-shared/send_master.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+# TBD:
+# - ensure all SERVER_* variables actually exist in environment
+# - test the script :)
+
+DIR="$(dirname -- "${BASH_SOURCE[0]}")"
+
+if [[ "$DIR" != *"MASTER" ]]; then
+   echo "This directory is not labeled as a MASTER. Skipping upload."
+   exit 0
+fi
+
+new_dir="`basename $DIR`"
+new_dir="${new_dir//MASTER/clone}"
+
+clone -e "ssh -p $SERVER_PORT" ./ $SERVER_USER@$SERVER_NAME:$SERVER_SFTP/$new_dir