So " run command " doesn't use P - make , or  ?
It uses " export " underlyingly. But , if you  i It 's meant to be run one job at a time ? So you could fire off a thousand of those , and it doesn't know  any one of those doesn't know about the other ones that are running.
So why would one use that rather than P - make ?
Well , if you have , um  Like , for example , uh if you didn't wanna write a P - make script and you just had a , uh  an HTK training job that you know is gonna take uh , six hours to run , and somebody 's using , uh , the machine you typically use , you can say " run command " and your HTK thing and it 'll find another machine , the fastest currently available machine and  and run your job there.