What is the correct syntax for labels for Jenkins agent nodes?

Question

I am configuring Linux agent node in Jenkins. What is the correct syntax (separator and escaping) for multiple labels here?

Colorific

Answer 1

English help says clearly what to write in this field.

Masoretic

Answer 2

You should separate labels with whitespaces. If a label contains a space you should quote it (single and double quotes are ok): E.g slave 'single quotes' "double quotes" "1970's" '1980\'s' results in these set of labels:

Colorific