H3C Technologies H3C S12500 Series Switches - Manual (Page 22)

10
Controlling the CLI output
This section describes the CLI output control features that help you quickly identify the desired output.
Pausing between screens of output
If the output being displayed is more than will fit on one screen, the system automatically pauses after
displaying a screen. By default, up to 24 lines can be displayed on a screen. To change the screen length,
use the screen-length screen-length command. For more information about this command, see
Fundamentals Command Reference. To control output, use keys in Table 5 .
Table 5 Keys for controlling output
Keys Function
Space Displays the next screen.
Enter Displays the next line.
Ctrl+C Stops the displaying and aborts the command execution.
<PageUp> Displays the previous page.
<PageDown> Displays the next page.
To display all output at one time and refresh the screen continuously until the final screen is displayed:
Task Command Remarks
Disable pausing between screens
of output for the current session.
screen-length disable
The default for a session depends on
the setting of the screen-length
command in user interface view. The
default of the screen-length
command is pausing between
screens of output and displaying up
to 24 lines on a screen.
This command is executed in user
view and takes effect only for the
current session. When you relog in
to the switch, the default is restored.
Filtering the output from a display command
You can use one of the following methods to filter the output from a display command:
• Specify the | { begin | exclude | include } regular-expression option at the end of the command.
• When the system pauses after displaying a screen of output, enter a forward slash (/), minus sign
(-), or plus sign (+) plus a regular expression to filter subsequent output. The forward slash equals the
keyword begin, the minus sign equals the keyword exclude, and the plus sign equals the keyword
include.
The following definitions apply to the begin, exclude, and include keywords:
• begin—Displays the first line that matches the specified regular expression and all lines that follow.
• exclude—Displays all lines that do not match the specified regular expression.