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