MRV Communications EM316EDFA-BR, EM316EDFA-LPR manual

Fiber Driver® EM316EDFA User Guide

5.2.5.1 “?”

The “?” is a special help character in the EM316LNXNM-OT command line. In previous releases, the “?” character did not echo to the display when typed. Beginning in version 4.0, the “?” displays as other commands do. Results of the help request are displayed immediately to the monitor.

The box below shows the output of the “?” typed alone on the command line in the slot-level configuration context. In other contexts, the display is different to reflect the commands available from the current prompt. Navigate to each operational context and type “?” at the prompt to become familiar with these commands in your environment. Also notice the different help output in the slot-level context of a different Fiber Driver module type. The box displayed below is specific to EDFA modules. The same command list displays for slot 1.4, except that the “reset” (highlighted) command is not available.

fiberdriver(slot/1.3)# ?
clear-type	Clear Type, if locking types
default	Restore parameter(s) to defaults
description	Set slot name
echo	Display text for scripting
end	End current context and go down to initial command context
exit	Exit current context and go down to previous context
list	Print command list
logout	Logout of	the system
next	Configure	next element
no	Negate a command
pager	Pause scrolling when screen is full
port	Configure	a port
previous	Configure	previous element
quit	Exit current context and go down to previous context
reset	Reset systems on this slot
show	Show basic info
sleep	Pause CLI	for scripting
slot	Configure	a slot
up	Configure	parent element
who	Find out who is connected to the system
whoami	Who am I?
write	Write running configuration to memory or terminal

fiberdriver(slot/1.3)#

The “?” may also be used in two ways after a command typed at the prompt in any context. When typed immediately after a command line entry with no space separating it from the command, the “?” displays a list of commands that match the preceding string and a description of each matching command function. When a space separates the command string from the “?”, the display shows the first matching command and a list of the options for the next required parameter on the command line.

Read more about the “?” help character in the EM316LNXNM-OT User Guide. There is no substitution for practicing the command to become familiar with its behavior.

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