Regular Expressions 101

Pro

Group host(?<host>.*(vmss)?\D)

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

Group 2(vmss)?

?repeats the group contents below at most once:

vmssthe literal text vmss (case sensitive)

\Dany character that's not a digit

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

(?<host>.*(vmss)?\D)

New

aks-agentpool-60893500-2
aks-nodes-15133334-vmss000002

aks-agentpool-60893500-2
aks-nodes-15133334-vmss000002