Regular Expressions 101

Server Version: the literal text Server Version: (case sensitive)

\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match

\d+a digit, repeated at least once

Non-Capturing Group(?:\.\d+)+

+repeats the group contents below at least once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a digit, repeated at least once

Positive Lookahead(?= Kubernetes)

Kubernetesthe literal text Kubernetes (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.

Search reference

Regular Expression

Server Version: \K\d+(?:\.\d+)+(?= Kubernetes)

New

Client Version: openshift-clients-4.3.0-201910250623-88-g6a937dfe Server Version: 4.3.0 Kubernetes Version: v1.16.2:q