BTW, I use CMD in Windows all the time on the job. It's the easiest way to check currnet IP settings and reset them when necessary (using ipconfig).
It was lp the last time I used it. "print" would be easier.
I use the command line to check ip stuff, too, and occasionally for other things but not as much as the Linux command line.
But lpr isn't nearly so intuitive when the person using it hasn't ever used a 'lineprinter'.
Heck, we're only one generation away from losing all reference to "grep".
Grep that. :-)