Prodos 8 : Easy to change filetypes ?

[Zouplaz <pouet@pouet.com>]

Hi, I'm trying to cross compile from linux and execute under prodos 8 
emulated (xkegs).

I have two questions :

1) is there anything better than to_pro ? It works fine except that it wipe 
entirely the volume ... So I need to boot on a disk image with the 
executable on another, will be not very cool if I intend to put datas WITH 
the executable (datas not transfered from linux)

So, I'm searching for a command line utility running under linux that allow 
me to add or delete files from within a disk image 

2) The file transfered (a simple machine code file produced by the 
compiler) have a wrong type. I'm looking for the simplest way to change it 
with a prodos command line utility 


My goal is to setup this sequence :

a) - compile
b) - update disk image
c) - run emulator - Prodos 8 boot disk
d) - execute startup app (applesoft basic)
e) - change wrong filetype
f) - execute (BRUN) binary code

z) - hang, reboot ;-))


Point b) (to_pro) is an half solution
Point e) I've no easy way


Thank you