What Is The Terminal Command For PRAM & SMC Reset?

Hi Folks - Cant get my Macbook Pro to shut down (instead it does a re-start) thus the key combination for these re-sets doesnt seem to function (no chimes). I saw in another thread a terminal command entry "sudo nvram boot-args=”-p -r” but I also saw it mentioned that entering that casued the following to pop-up "Note that resetting the PRAM will wipe out the contents of the boot-args environment variable, which means the command would need to be reissued each startup." Whats with "reissued each startup"? Also would like a an SMC re-set command. THANKS in advance!

I dont know of a terminal command but here is how to reset the SMC:
Resetting the System Management Controller (SMC)
Resetting the SMC on Mac portables with a battery you can remove
Shut down the computer.
Disconnect the MagSafe power adapter from the computer, if it's connected.
Remove the battery (to remove the battery - click here: MacBook or MacBook Pro).
Press and hold the power button for 5 seconds.
Release the power button.
Reconnect the battery and MagSafe power adapter.
Press the power button to turn on the computer.
Resetting the SMC on portables with a battery you should not remove on your own
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.

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