rmmod—Unload loadable modules
rmmod [ -r ] module …
rmmod unloads loadable modules from the kernel.
rmmod tries to unload a set of modules from the kernel, with the restriction that they are not in use and that they are not referred to by other modules.
If more than one module is named on the command line, the modules will be removed in the given order. This supports unloading of stacked modules.