These scripts are useful if you need to run a large number of gds files through Calibre xRC. For exmaple, I've run 50 different gds files using this method.
This tar file contains two tcl scripts:
tc.tcl: This takes a listing of gds files, and uses Calibre DESIGNrev to find the top cell name, and creates a file that lists every gds file along with its corresponding top cell name.
multirun.tcl: This takes the file from the last step, takes an xRC run script, and run xRC cyclying through each gds and cell name. For example, you can run 50 different gds files with 50 different cell names in one batch job.