This mode compares the geometry and instance placements in cells from two cell hierarchies, usually from different files. The results are written to a log file.
The command line format for this mode is
filetool [-set variables] -comp comp_args
The operations and arguments are identical to those of the Xic !compare command (19.14.3). This includes the operations involving Cell Hierarchy Digests (CHDs) and in-memory hierarchies, provided that those have been created by script functions in the .filetoolrc file. However, it is most likely that from the FileTool, the sources will always be on-disk layout files.