Shell script help needed

[phiscock-g851W1bGYuGnS0EtXVNi6w at public.gmane.org]

Folks -

I have a mass of files with names like crw_0858.tiff that I need to
convert to black an white using the following command line.

convert crw_0858.tiff -colorspace Gray output_0858.tiff
convert crw_0859.tiff -colorspace Gray output_0859.tiff

etc

This is beyond my shell-scripting capabilities. Can anyone suggest a
simple shell script that can do this?

Error checking is not required since I'm the only one to run this thing,
and I do it manually.

Thanks in advance...

Peter

-- 
Peter Hiscocks
Syscomp Electronic Design Limited, Toronto
http://www.syscompdesign.com
USB Oscilloscope and Waveform Generator
647-839-0325

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