Regular Expressions 101

Pro

Group 1(^no |^ *)

1st Alternative^no

^start of string

no the literal text no (case sensitive)

2nd Alternative^ *

^start of string

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

logging the literal text logging (case sensitive)

.+any character (except for line terminators), repeated at least once

Group 2(.[0-9]|: *[a-fA-F0-9]{4})

1st Alternative.[0-9]

.any character (except for line terminators)

Character Class[0-9]

0-9one character from 0 (48₁₀) to 9 (57₁₀)

2nd Alternative: *[a-fA-F0-9]{4}

:the literal : (58₁₀ / 72₈ / 3A₁₆)

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

Character Class[a-fA-F0-9]{4}

{4}matches exactly 4 characters from the set below:

a-fone character from a (97₁₀) to f (102₁₀) (case sensitive)

A-Fone character from A (65₁₀) to F (70₁₀) (case sensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

.+any character (except for line terminators), repeated at least once

$end of string, or before its final line terminator

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

27 tokens

Regular Expression

(^no |^ *)logging .+(.[0-9]|: *[a-fA-F0-9]{4}).+$

New

logging trap notice
logging 10.29.9.20
logging 10.29.9.20 trap info
logging 10.92.9.20
logging 10.92.9.20 trap info
logging level audit mgmt notice
logging level cli commands notice
logging local notice

Extraction

logging trap notice
logging 10.29.9.20
logging 10.29.9.20 trap info
logging 10.92.9.20
logging 10.92.9.20 trap info
logging level audit mgmt notice
logging level cli commands notice
logging local notice