What are the four filtering parameters for Cisco IOS show command output?

Question

Accepted Answer

section, include, exclude, and begin — each piped after a show command with the | character to trim its output.
Syntax: show [command] | [filter] [expression]

Filter
Function
Example

section
Shows the entire section starting with the match
show running-config | section vty

include
Shows only lines that contain the expression
show ip interface brief | include up

exclude
Shows all lines except those matching
show running-config | exclude !

begin
Shows all output starting from the first matching line
show running-config | begin interface

Controlling output length:

By default, output pauses every 24 lines showing --More--
Press Enter for one more line, Spacebar for the next page
terminal length 0 — disables pausing (shows all output at once)
terminal length [lines] — set custom page size

Tip: | include is your best friend for quickly finding specific information in large outputs. For example, show ip interface brief | include up shows only active interfaces.

Filter	Function	Example
section	Shows the entire section starting with the match	`show running-config \| section vty`
include	Shows only lines that contain the expression	`show ip interface brief \| include up`
exclude	Shows all lines except those matching	`show running-config \| exclude !`
begin	Shows all output starting from the first matching line	`show running-config \| begin interface`