IDL Startup Pro

I want to run a .pro file when opening my IDL. To do that, first I have to create a file name idl_startup.pro. I can write any IDL script thing there. Like:

print, "Hello!"

Then, one has to append the folowing lines in .bashrc.

IDL_STARTUP="/my/path/to/idlstartup.pro"

export IDL_STARTUP

After that, simply run IDL.