symop_build_spacegroup(1) on Linux
The text 79eee3fd25ad, as Debian 10 (Buster) shipped it.
Determine a space group from a list of symmetry operators (generators), using the Ralf's (Ralf Grosse-Kunstleve) algorithm. USAGE: symop_build_spacegroup < input.symop USAGE: symop_build_spacegroup input.symop USAGE: symop_build_spacegroup input.symop additional*.symop