Comprehensive and Detailed Explanation From Exact Extract:
In theNokia SR OS CLI, specifically in bothclassic CLIandMD-CLI, the"?" keyis used to display a list of all possible command options at a given point in the CLI, along with a brief description of each option.
This functionality helps the user in command discovery and reduces the chances of syntactical errors by showing only valid options.
The"Tab"key, while helpful, is primarily used forauto-completionand not for displaying detailed descriptions.
"Space bar"is used for command continuation, and"Return"executes the command or moves to the next line.
Correct usage example in classic CLI:
*A:SR1>config>router>interface# ?
- Shows all the valid commands and parameters under interface
[Reference:, Nokia SRA Study Guide – Chapter: "CLI Fundamentals", Nokia SR OS Fundamentals Guide – Section: "Using the CLI Help System", , ]
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