Use a variety of schemes to find the name of the object used for a FITS image. The object name is written to standard out. In the example below, I use a gethead run to show how the name can be "cleaned" of extraneous information (i.e. the filter name).
% find_object.sh N4618.fits NGC4618_R % gethead N4618.fits OBJECT NGC4618Parts of this are klugy, but fairly obvious. If a new (non-standard) object naming scheme is encountered, this code should be easy to change to handle the new case.