List and how ” | ” pipeline commands for Cisco devices

Do you know the “| pipeline”, a command technique that should be used by those who manage and set up Cisco devices?? It is a basic skill among network engineers who use Cisco devices, but many front-end engineers who do not usually touch the equipment do not know.

You can use this pipeline to display only some of the lengthy commands that are output in the CLI.
I often use the show run command, but most of the output is unnecessary, isn’t it?

About | ” command

Read “|” ← pipeline

First of all, you don’t know how to read this symbol. smile
It is called a “pipe” or “pipeline”. I often don’t know how to call it and can’t tell my customers and partners by mouth.

How to

「|」 Type the command that is provided after < a0>, and then type any string.</a0> This “|” Searches for strings in the output of commands entered before < a0>, and changes the output. </a0> (Since it is difficult pipeline pipeline command command cisco includeto understand, the following is an example.) )

For example, in the example above, you can use the “show run” |” I’m using .
「|」 is followed by “inc” (include) and the string “route” is entered.

In this case, only the line containing the string “route” is displayed in the output of the show run.
Originally, it would be difficult to find routing settings, but by using this “include” command, you can display only the part that the user wants to check, so it will be easier to work.

There are a lot of commands.

switch#show run | ?
  append    Append redirected output to URL (URLs supporting append operation
  begin     Begin with the line that matches
  count     Count number of lines which match regexp
  exclude   Exclude lines that match
  format    Format the output using the specified spec file
  include   Include lines that match
  redirect  Redirect output to URL
  section   Filter a section of output
  tee       Copy output to URL

There are nine pipeline commands. “section”, “include”, and “begin” are often used in this.
I often use “section” in this. By using “section”, it is possible to output only the vty setting part, only the interface part, OSPF setting only, etc. for each setting division.

We recommend that you use it when sharing only a part of the comp! !