Regular Expressions 101

Group 1((?:[\w\s\d\.:]*)(?:\[(?:[^]]+)\][:\s]*))

Non-Capturing Group(?:[\w\s\d\.:]*)

Character Class[\w\s\d\.:]*

*matches any number of characters from the set below:

\wany word character

\sany whitespace character

\da digit

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Non-Capturing Group(?:\[(?:[^]]+)\][:\s]*)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Non-Capturing Group(?:[^]]+)

Negated Character Class[^]]+

+matches at least one character outside the set below:

]the literal ] (93₁₀ / 135₈ / 5D₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Character Class[:\s]*

*matches any number of characters from the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\sany whitespace character

Global pattern flags

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

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

((?:[\w\s\d\.:]*)(?:\[(?:[^]]+)\][:\s]*))

New

Feb 2 14:27:50 test.dh.test.com named[123456]: [ID xxxxx local6.info] 02-Feb-2021 14:27:50.448 queries: info: client @172ac618 x.x.x.x#61721 (cd1ae518178748adbca4cff52b24b791.fp.measure.office.com): query: cd1ae51817ffdfdfhhh8748adbca4cff52b24b791.fp.measure.office.com IN A +

Regular Expression

Extraction