H3C MSR 20-20 Command Reference Manual page 2429

Table 628 Meanings of characters in text
Character
+
-
[ ]
( )
Description Use the
the log information recorded. Absence of the size buffersize argument indicates
that all log information recorded in the log buffer is displayed.
Example # Display the state of the log buffer and the log information recorded on a device.
<Sysname> display logbuffer
Logging buffer configuration and contents:enabled
Allowed max buffer size : 1024
Actual buffer size : 512
Channel number : 4 , Channel name : logbuffer
Dropped messages : 0
Overwritten messages : 718
Current messages : 512
%Jun 17 15:57:09:578 2006 Sysname IC/7/SYS_RESTART:
System restarted --
H3C Platform Software
%Jun 17 15:57:54:428 2006 Sysname DEV/5/BOARD TEMP NORMAL:
Board temperature changes to normal in Frame 0 Slot 0, type is Sysn
ame RPU Board.
%Jun 17 15:58:00:464 2006 Sysname SHELL/5/CMD:task:CFM ip:** user:**
command:vlan 1
%Jun 17 15:58:00:465 2006 Sysname SHELL/5/CMD:task:CFM ip:** user:**
command:interface Aux0
The rest is omitted here.
Table 629 Descriptions on the fields of the display logbuffer command
Field
Logging buffer configuration and
contents
Allowed max buffer size
Actual buffer size
Channel number
Meaning
Addition, used to match a
subexpression before it one or
multiple times
Hyphen. It connects two values (the
smaller one before it and the bigger
one after it) to indicate a range
together with [ ].
Selects one character from the
group.
A group of characters. It is usually
used with "+" or "*".
display logbuffer command to display the state of the log buffer and
Remarks
zo+ can map to "zo" and "zoo", 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 only
one character among 1, 2, 3, 6, and
A.
For example, (123A) means a string
"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.
Description
Indicates the current state of the log buffer and its
contents, which could be enabled or disabled.
The maximum buffer size allowed
The actual buffer size
The channel number of the log buffer, defaults to 4
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