yq/pkg/yqlib/doc/Boolean Operators.md

The or and and operators take two parameters and return a boolean result. These are most commonly used with the select operator to filter particular nodes.

Examples

OR example

Running

yq eval --null-input 'true or false'

will output

true

AND example

Running

yq eval --null-input 'true and false'

will output

false

Matching nodes with select, equals and or

Given a sample.yml file of:

- a: bird
  b: dog
- a: frog
  b: bird
- a: cat
  b: fly

then

yq eval '.[] | select(.a == "cat" or .b == "dog")' sample.yml

will output

a: bird
b: dog
a: cat
b: fly