Online help, Command completion, Scroll control – Brocade FastIron Ethernet Switch Administration Guide User Manual
Page 20: Online help command completion scroll control

The commands in the CLI are organized into the following levels:
• User EXEC - Lets you display information and perform basic tasks such as pings and traceroutes.
• Privileged EXEC - Lets you use the same commands as those at the User EXEC level plus
configuration commands that do not require saving the changes to the system-config file.
• CONFIG - Lets you make configuration changes to the device. To save the changes across
reboots, you need to save them to the system-config file. The CONFIG level contains sub-levels for
individual ports, for VLANs, for routing protocols, and other configuration areas.
NOTE
By default, any user who can open a serial or Telnet or SSH connection to the Brocade device can
access all these CLI levels. To secure access, you can configure Enable passwords or local user
accounts, or you can configure the device to use a RADIUS or TACACS/TACACS+ server for
authentication. Refer to "Security Access" chapter in the FastIron Ethernet Switch Security
Configuration Guide .
Online help
To display a list of available commands or command options, enter "?" or press Tab. If you have not
entered part of a command at the command prompt, all the commands supported at the current CLI
level are listed. If you enter part of a command, then enter "?" or press Tab, the CLI lists the options
you can enter at this point in the command string.
If you enter an invalid command followed by ?, a message appears indicating the command was
unrecognized. An example is given below.
device(config)#rooter ip
Unrecognized command
Command completion
The CLI supports command completion, so you do not need to enter the entire name of a command or
option. As long as you enter enough characters of the command or option name to avoid ambiguity
with other commands or options, the CLI understands what you are typing. This feature is not
available in the boot loader prompt of ICX 6430 and ICX 6450 devices.
Scroll control
By default, the CLI uses a page mode to paginate displays that are longer than 24 lines to 24-line
page increments. For example, if you display a list of all the commands at the global CONFIG level,
the page mode stops the display at each 24-line increment and lists your choices for continuing the
display. An example is given below.
aaa
all-client
appletalk
arp
boot
some lines omitted for brevity...
ipx
lock-address
logging
mac
--More--, next page: Space, next line:
Return key, quit: Control-c
Online help
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FastIron Ethernet Switch Administration Guide
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