[GRASSLIST:1294] command which works like "d.what.rast" command but non-interactively

[Hayashi Shin-ichiro]

Dear GRASS User

I'm using some raster map which is DEM.
I'm searching for GRASS command which is mentioned bellow.

* If I give xy coordinates on raster map to command, command return elevation value.
* command works non-interactively. 

Does GRASS have such command?
(In short, I want to know command which works like "d.what.rast" command but non-interactively.) 
Please let me know.

Thank you in advance.
Sincerely yours.

----
Hayashi Shin'ichiro  
mail:forest at bres.tsukuba.ac.jp URL:http://ryuiki.agbi.tsukuba.ac.jp/~forest
Watershed Management Lab., University of TSUKUBA