Get an MD5 checksum of a file. For IGES files, the header can be ignored so that we obtain a checksum for the geometry only.
pip install git+https://github.com/joergbrech/iges_md5
The following command simply returns the MD5 Checksum of an ASCII file
iges_md5 input_file.iges
The following command ignores the HEADER, if the input file is an IGES file
iges_md5 input_file.iges --ignore-header