Reference Guide

Configuration Fundamentals | 41

Command History

Dell Networking OS maintains a history of previously-entered commands for each mode. For example:

• When you are in EXEC mode, the UP and DOWN arrow keys display the previously-entered EXEC

mode commands.

• When you are in CONFIGURATION mode, the UP or DOWN arrow keys recall the

previously-entered CONFIGURATION mode commands.

Filtering show Command Outputs

Filter the output of a show command to display specific information by adding | [except | find | grep | no-more

| save

] specified_text after the command. The variable specified_text is the text for which you are filtering and

it IS case sensitive unless the

ignore-case sub-option is implemented.

The

grep command accepts an ignore-case sub-option that forces the search to case-insensitive. For

example, the commands:

•

show run | grep Ethernet returns a search result with instances containing a capitalized “Ethernet,” such

as interface TenGigabitEthernet 0/0.

•

show run | grep ethernet would not return that search result because it only searches for instances

containing a non-capitalized “ethernet.”

Executing the command

show run | grep Ethernet ignore-case would return instances containing both

“Ethernet” and “ethernet.”

•

grep displays only the lines containing specified text. The following example shows this command

used in combination with the command do show stack-unit all stack-ports all pfc details | grep 0.

Figure 2-9. Filtering Command Outputs with the grep Command

Esc F

Moves the cursor forward one word.

Esc D

Deletes all characters from the cursor to the end of the word.

Table 2-2. Short-Cut Keys and their Actions (continued)

Key Combination Action

Dell(conf)#do show stack-unit all stack-ports all pfc details | grep 0

stack unit 0 stack-port all

0 Pause Tx pkts, 0 Pause Rx pkts