I'm not sure if 99% is accurate - unless you intentionally include internal tooling ("standard UNIX commands" implies not). Now, if you mean "actual UNIX", I'm

I'm not sure if 99% is accurate - unless you intentionally include internal tooling ("standard UNIX commands" implies not). Now, if you mean "actual UNIX", I'm not sure - but at least gnu is pretty widely translated. Not sure where the bsds stand on this.