[GRASS-user] How to import grass ASCII grid with comma as a separator

[Jarekj]

Hi
I recived a number of grass ascii grid floating point maps with 
resolution 6000 x8000 (over 300 MB) px with comma (,) instead of point 
(.) as a decimal separator.

I have problem with import that data due to bad interpretation of comma 
in file. I tiried with find/replace command in gedit but due to file 
size it takes to much time.
Is some method to import such file without replacing commas with points 
in external text editor
Jarek