Reference Guide

22 | CLI Basics
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When you execute a show command, followed by a pipe ( | ) and one of the
parameters listed below and a regular expression, the resulting output either excludes
or includes those parameters, as defined by the parameter:
•
display — display additional configuration information
•
except— display only text that does not match the pattern (or regular expression)
•
find — search for the first occurrence of a pattern
•
grep — display text that matches a pattern
•
no-more — do not paginate the display output
•
save — copy output to a file for future use
The
grep command option has an ignore-case sub-option that makes the search
case-insensitive. For example, the commands:
•
show run | grep Ethernet would return a search result with instances containing a
capitalized “Ethernet,” such as
interface GigabitEthernet 0/0.
•
show run | grep ethernet would not return the search result, above, 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.”
Displaying All Output
To display the output all at once (not one screen at a time), use the no-more after the
pipe. This is similar to the
terminal length screen-length command except that the
no-more option affects the output of just the specified command.For example:
FTOS#show running-config|no-more
Filtering Command Output Multiple Times
You can filter a single command output multiple times. Place the save option as the
last filter. For example:
FTOS# command | grep regular-expression | except regular-expression | grep
other-regular-expression |
find regular-expression | no-more | save
Note: FTOS accepts a space before or after the pipe, no space before or after the
pipe, or any combination. For example:
FTOS
#command | grep gigabit |except regular-expression | find
regular-expression