I'm pretty sure this will be a very easy question, but for some reason I cannot get the command "Copy Running-Config Startup-Config" to run on a EX2300. Every time I try and type the command in Putty it returns with unknown command. I have tried at both the root# and the root> prompts. My experience configuring routers is very limited, thanks for any help.
The command you attempted to execute is not supported in junos. I believe you are attempting to make the config persist across reboots. In junos, once you commit a configuration it will be persistent across reboots.