Friendly warning in transfer_code.sh
# Convenience script to copy this jiant repo to a (new) GCE instance.
# Usage: ./transfer_code.sh <instance_name> [<zone>]
+echo "FRIENDLY WARNING: Your life will be easier if you keep your code of NFS and maintain only one copy."
+
INSTANCE_NAME="${1:-"$USER"}"
ZONE="${2:-"us-east1-c"}"
