creating a script

----------
X-Sun-Data-Type: text
X-Sun-Data-Description: text
X-Sun-Data-Name: text
X-Sun-Charset: us-ascii
X-Sun-Content-Lines: 10

Hi, everyone:

I have a series raster files (cell files) located in /PERMANENT/cell. I want
to convert them into ASCII format using r.out.ascii command. I am trying to
write a script like a .sh command, but grass does not recognize it. Can anyone
tell me how I create a .sh program in grass.

Thank you.

----------
X-Sun-Data-Type: default
X-Sun-Data-Description: default
X-Sun-Data-Name: foot
X-Sun-Charset: us-ascii
X-Sun-Content-Lines: 10

===================================
Ye Qi
Scripps Institution of Oceanography
University of california, San Diego
La Jolla, California 92093-0220

Phone: (619)-534-4232
Email: qi@cdrgsun.ucsd.edu