Convert a file using custom parameters (the dox_cmd.h file in assimp's source code lists available parameters)

Command-line client for the Open Asset Import Library.
Supports loading of 40+ 3D file formats, and exporting to several popular 3D formats.
More information: <http://www.assimp.org/>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

assimp export {{input_file.stl}} {{output_file.obj}} {{parameters}}

click the source code to copy install assimp on any operating system with command-not-found.com