Regular Expressions 101

^start of line

Character Class[\[\]\d\s\w]+

+matches at least one character from the set below:

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

\da digit

\sany whitespace character

\wany word character

.any character (except for line terminators)

\sany whitespace character

Group Contact_group(?<Contact_group>[a-z]+)

Character Class[a-z]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

.any character (except for line terminators)

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

^[\[\]\d\s\w]+.\s(?<Contact_group>[a-z]+).

New

[1571983666] SERVICE NOTIFICATION: nagiosadmin;www.test.com;Kibana_Service_Check;CRITICAL;notify-service-by-email;connect to address 10.51.112.132 and port 5601: Connection refused