which bash

$ echo $BASH_VERSION 2.05b.0(1)-release $ bash --version GNU bash, version 3.2.33(1)-release (powerpc-apple-darwin8.11.0) Copyright (C) 2007 Free Software Foundation, Inc. $ which bash /opt/local/bin/bash $ # Which bash is being used by the system; 3.2.33(1)-release or 2.05b.0 (1)-release?