Regular Expressions 101

Pro

Group 1(\[monitor:///var/log/(?:messages|secure)\](?:(?:\R.*){2})index=)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

monitor:///var/log/the literal text monitor:///var/log/ (case sensitive)

Non-Capturing Group(?:messages|secure)

1st Alternativemessages

messagesthe literal text messages (case sensitive)

2nd Alternativesecure

securethe literal text secure (case sensitive)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Non-Capturing Group(?:(?:\R.*){2})

Non-Capturing Group(?:\R.*){2}

{2}repeats the group contents below exactly 2 times:

\Ra newline sequence

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

index=the literal text index= (case sensitive)

powerthe literal text power (case sensitive)

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.

25 tokens

(\[monitor:///var/log/(?:messages|secure)\](?:(?:\R.*){2})index=)power

New

[monitor:///var/log/messages]
sourcetype=linux
index=power

[monitor:///var/log/secure]
sourcetype=linux
index=power

[monitor:///var/log/messages]
sourcetype=linux
index=power

[monitor:///var/log/secure]
sourcetype=linux
index=power