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# Getting Help for Commands and Statements for the SRC CLI

Information about commands and statements is provided at each level of the CLI hierarchy. You can type a question mark to get help in the following ways:

- If you type the question mark at the command-line prompt, the CLI lists the available commands, statements, or options. For example, to view a list of top-level operational mode commands, type a question mark (?) at the command-line prompt.

      user@host> ?
      Possible completions:
        clear                Clear system-level objects
        configure            Enter configuration mode
        disable              Stop an SRC component
        enable               Start an installed and configured component
        exit                 Exit a CLI session
        file                 Perform file operations
        help                 Display help about commands and statements
        history              Display command history
        request              Make request for specified component
        restart              Restart an SRC component
        set                  Properties for the CLI environment
        show                 Display configuration information
        ssh                  Open SSH session to another host
        start                Start shell
        telnet               Telnet to another host
        test                 Test a NIC resolution
      user@host>

- If you type the question mark after entering the complete name of a command, statement, or option, the CLI lists the available options, then displays again the text that you typed.

      user@host> clear ?
      Possible completions:
        sae                     Clear SAE-level objects
        security                Delete security data
      user@host> clear

- If you type the question mark in the middle of a command, statement, or option name, the CLI lists possible command completions that match the letters you have entered so far, then displays again the text that you typed. For example, to list all operational mode commands that start with the letter c, type the following:

      user@host> c?
      Possible completions:
        clear                Clear (delete) data
        configure            Enter configuration mode
      user@host> c

You can also get extended help for a command, statement, or option by using the help command:

    user@host> help enable
    Start a specified SRC component.

#### Related Topics

- Getting Help for Omitted Statements
- Overview of Commands to Control the SRC CLI Environment
- Understanding SRC Command and Statement Hierarchies
- Types of SRC Commands and Statements
- SRC CLI Messages

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