Question : How do you save the running config to startup config on a 6509

How do you save the running config to startup config on a 6509 Cat OS.  Tried to save the running config to startup config but there was not a command for it.  Does anyone know the right command.

Answer : How do you save the running config to startup config on a 6509

>6509 Cat OS
CatOS automatically saves. There is no distinction between startup and running configs in CatOS.
A simple
"write mem"
 is all you need