Example

To clip the file ngc2336_r_2.sdf type:

clipim.csh ngc2336_r_2.sdf ngc2336_small.sdf

The clipped image will be saved in file ngc2336_small.sdf. Note that to avoid ambiguity the `.sdf' file type must be included in the file name here. Also note that you must follow the instructions carefully if the script is to work correctly.