H3C Technologies H3C S5120 Series Switches - Manual (Page 22)

1-8
Table 1-2 Command conventions
Convention Description
Boldface
The keywords of a command line are in Boldface. Keep keywords unchanged
when typing them in the CLI.
Italic
Command arguments are in italic. Replace arguments with actual values in the
CLI.
[ ] Items (keywords or arguments) in square brackets [ ] are optional.
{ x | y | ... }
Alternative items are grouped in braces and separated by vertical bars. One is
selected.
[ x | y | ... ]
Optional alternative items are grouped in square brackets and separated by
vertical bars. One or none is selected.
{ x | y | ... } *
Alternative items are grouped in braces and separated by vertical bars. A
minimum of one or a maximum of all can be selected.
[ x | y | ... ] *
Optional alternative items are grouped in square brackets and separated by
vertical bars. Many or none can be selected.
&<1-n> The argument(s) before the ampersand (&) sign can be entered 1 to n times.
# A line starting with the # sign is comments.
H3C command lines are case insensitive.
Take the clock datetime time date command as an example to understand the command meaning
according to Table 1-2 .
Figure 1-9 Read command line parameters
clock datetime time date
Boldface: Keywords,
keep them unchanged
when typing them in the
CLI
Italic: Arguments,
replace them with
actual values in the
CLI
Type the following command line in the CLI of a device and press Enter. You set the device system time
to 10 o’clock 30 minutes 20 seconds, February 23, 2010.
clock datetime 10:30:20 2/23/2010
You can read any commands more complicated according to Table 1-2 .
CLI View Description
CLI views are designed to meet various configuration requirements.
The following describes the most commonly used view operations: entering system view, exiting the
current view, and returning to user view.