Regular Expressions 101

^start of line

Group 1(.*)

.*any character (except for line terminators), repeated any number of times

SERVICE NOTIFICATION:the literal text SERVICE NOTIFICATION: (case sensitive)

\sany whitespace character

Negated Character Class[^;]*

*matches any number of characters outside the set below:

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

Group 2(.*)

.*any character (except for line terminators), repeated any number of times

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

^(.*)SERVICE NOTIFICATION:\s[^;]*;(.*)

Test String
New

[1571992954] SERVICE NOTIFICATION: nagiosadmin;www.test.com;Elastic_Service_Check;CRITICAL;notify-service-by-email;connect to address xx.xx.xxx.xxx and port 9200: Connection refused

Regular Expression

Test StringNew

SubstitutionProcessing...

Test String
New

Substitution
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