Dell PowerEdge VRTX - Manual (Page 42)

42 Preface
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D E L L C O N F ID E N T IA L – P R E L IM I N A RY 4 / 3 /1 4 - FO R P R O O F O N LY
Entering Commands
A CLI command is a series of keywords and arguments. Keywords identify a
command, and arguments specify configuration parameters. For example, in
the command "show interfaces status gi0/4" show, interfaces and status are
keywords, gi is an argument that specifies the interface type, and 0/5 is an
argument that specifies the port.
To enter commands that require parameters, enter the required parameters
after the command keyword. For example, to set a password for the
administrator, enter:
console(config)# username admin password smith
Help information can be displayed in the following ways:
• Keyword Lookup — The character ? is entered in place of a command. A
list of all valid commands and corresponding help messages are displayed.
• Partial Keyword Lookup — A command is incomplete and the character ?
is entered in place of a parameter. The matched parameters for this
command are displayed.
The following describes features that assist in using the CLI:
Terminal Command Buffer
Every time a command is entered in the CLI, it is recorded on an internally
managed Command History buffer. Commands stored in the buffer are
maintained on a First In First Out (FIFO) basis.These commands can be
recalled, reviewed, modified, and reissued. This buffer is not preserved across
device resets. The keys that can be used to access the history buffer are
described in Keyboard Keys .
By default, the history buffer system is enabled, but it can be disabled at any
time. For information about the command syntax to enable or disable the
history buffer, see the history command.
There is a standard default number of commands that are stored in the buffer.
The standard number of 10 commands can be increased to 256. By
configuring 0, the effect is the same as disabling the history buffer system. For
information about the command syntax for configuring the command history
buffer, see the history size command.
To display the history buffer, see show history command.