Configuration Fundamentals | 15Command HistoryFTOS 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 EXECmode commands.• When you are in CONFIGURATION mode, the UP or DOWN arrows keys recall thepreviously-entered CONFIGURATION mode commands.Filtering show Command OutputsFilter 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 andit IS case sensitive unless you use the ignore-case sub-option.The grep command accepts an ignore-case sub-option that forces the search to be case-insensitive. Forexample, the commands:• show run | grep Ethernet returns a search result with instances containing a capitalized “Ethernet,” suchas interface TenGigabitEthernet 0/0.• show run | grep ethernet would not return that search result because it only searches for instancescontaining a non-capitalized “ethernet.”Executing the show run | grep Ethernet ignore-case command would return instances containing both“Ethernet” and “ethernet.”• grep displays only the lines containing specified text. Figure 3-9 shows this command used incombination with the do show stack-unit all stack-ports pfc details | grep 0 command.CNTL-R Re-enters the previous command.CNTL-U Deletes the line.CNTL-W Deletes the previous word.CNTL-X Deletes the line.CNTL-Z Ends continuous scrolling of command outputs.Esc B Moves the cursor back one word.Esc F Moves the cursor forward one word.Esc D Deletes all characters from the cursor to the end of the word.Table 3-2. Short-Cut Keys and their Actions (continued)Key Combination Action
