3Com Switch 4500 Family Manual page 50

system: Indicates the system configuration.
user-interface: Indicates the user interface configuration.
interface: Displays port/interface configuration.
interface-type: Port/interface type, which can be one of the following: Aux, Ethernet, GigabitEthernet,
Loopback, NULL and VLAN-interface.
interface-number: Port/interface number.
by-linenum: Displays configuration information with line numbers.
|: Uses a regular expression to filter the configuration of the switch to be displayed. By specifying a
regular expression, you can locate and query the needed information quickly.
regular-expression: A regular expression, case sensitive. It supports the following match rules:
begin: Displays the line that matches the regular expression and all the subsequent lines.
exclude: Displays the lines that do not match the regular expression.
include: Displays only the lines that match the regular expression.
A regular expression also supports some special characters. For match rules of the special characters,
refer to Table 1-1
Table 1-1 Special characters in regular expression
Character
^
$
.
*
+
-
[ ]
( )
Description
Use the display current-configuration command to display the current configuration of a switch.
for details.
Meaning
Starting sign, the string to the right of this
character appears only at the beginning
of a line.
Ending sign, the string to the left of this
character appears only at the end of a
line.
Full stop, a wildcard used in place of any
character, including blank
Asterisk, the character to the left of the
asterisk should match zero or more
consecutive times.
Plus sign, the character to the left of the
plus sign should match one or more
consecutive times.
Hyphen. It connects two values (the
smaller one before it and the bigger one
after it) to indicate a range together with
[ ].
Square brackets. Specifies a range of
characters, and matches any character
in the specified range.
Parenthesis. Specifies a character
group. It is usually used with + or *.
For example, regular expression ^user
matches lines beginning with user, not
Auser.
For example, regular expression user$
matches lines ending with user, not
userA.
None
For example, zo* can match z and zoo,
and so on, but not zo.
For example, zo+ can match zo and
zoo, and so on, but not z.
For example, 1-9 means numbers from 1
to 9 (inclusive); a-h means from a to h
(inclusive).
For example, [1-36A] can match a
string containing any character among
1, 2, 3, 6, and A.
For example, (123A) means a character
group 123A; 408(12)+ can match 40812
or 408121212. But it cannot match 408.
That is, 12 can appear continuously and
it must at least appear once.
1-2
Remarks