Huawei Quidway S3900 series Command Manual page 51

Command Manual – Configuration File Management
Quidway S3900 Series Ethernet Switches-Release 1510
interface-number: Port/interface number.
vlan: Displays VLAN configuration.
vlan-id: VLAN ID.
by-linenum: Displays line numbers.
|: Uses a regular expression to filter the configuration of the device to be displayed.
begin: Displays the configuration starting with the string specified by the
regular-expression argument.
include: Displays the configuration including the string specified by the
regular-expression argument.
exclude: Displays the configuration not including the string specified by the
regular-expression argument.
regular-expression: A regular expression.
Table 1-1 Special characters used in a regular expression
Character
^
$
_
(
.
Meaning
Match the strings starting
with the sub-expressions
following "^"
Matches the strings starting
with the sub-expressions
before "$"
Underline, which
represent the following
characters: (^|$|[,{}]), space,
starting character,
ending character.
Left parenthesis,
push-in-stack signal
Period. A wildcard, it can
represent any
character, including spaces.
Huawei Technologies Proprietary
1-2
Chapter 1 Configuration File Management
Description
^user matches configuration
files starting with "user".
user$ matches
configuration
"user"
If the first character of a
regular expression is not "_",
the number of the underline
characters
expression is only limited by
the length of a command line.
can
If the first character of a
regular expression is "_",
there can be up to four other
and
successive
characters following it.
If the underline characters are
not successive, only the first
underline character group is
matched. The
underline groups are ignored.
You are not recommended to
use this character in a regular
expression.
single —
Commands
the
ending with
in a regular
underline
subsequent