add: friendly path-export & open startfiles for bash

bash/bash-open-startfiles.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+# lists all files, an interactive login-shell with bash would try to open. Useful to find the correct order of .bashrc .profile and such.
+
+echo exit | strace bash -li |& grep '^open'