ssg_symop_matrices(1) on Linux
The text 6243a6b62efc, as Debian 10 (Buster) shipped it.
Parse superspace group symmetry operators as described in the CIF _space_group_symop_ssg_operation_algebraic data items and produce symmetry matrices for them. USAGE: ssg_symop_matrices < input.symop USAGE: ssg_symop_matrices input.symop USAGE: ssg_symop_matrices input1.symop input*.symop