Regular Expressions 101

Group field1(?<field1>\d+)

\d+a digit, repeated at least once

$end of line

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

(?<field1>\d+)$

msg: 2018-07-07 14:30:02.226 INFO 7 --- [nio-8080-exec-6] c.f.p.a.service.CGEventRetimeService : <> : 12006