Huawei Quidway S8500 Series - Page 16

Command Manual – Getting Started
Quidway S8500 Series Routing Switches Chapter 1
Commands Used to Log in to Switch
Huawei Technologies Proprietary
1-5
y history command-
nds displayed by
Parameter
Command-Number: The number of history commands the user wants to query. The
value range is 1 to 256.
|: Operator, indicating that a regular expression follows.
begin: Displays all commands starting from the one that matches the match string.
include: Displays only the command that matches the string.
exclude: Displays only the commands that do not match the match string.
Match-string: The regular expression to match.
Description
The display history-command command is used to query selectively the history
commands. All the history commands are stored in the history command buffer. When
the history command buffer is full, the oldest information in the buffer will be replaced by
new information.
The number of history commands obtained through the display history-command
command, Command-Number, depends on the size of the history command buffer set
through the history-command max-size command, and Command-Number should
not be bigger than the size of the history command buffer Max-size. If the specified
Command-Number is bigger than the Max-size, all the commands in the history
command buffer will be queried.
Refer to
Figure 1-1.
displa
Comma
Command-Number
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Max-size-2
History buffer size
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Max-size-1
Max-size
Comma
displa
Comma
nd-Number
y history command-
nds displayed by
Command-Number
1
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2
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Max-size-2
History buffer size
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1
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Max-size-1
Max-size
Comma
nd-Number
r Figure 1-1 Relation between history buffer size and Command-Numbe