Flatten

This recursively flattens arrays.

Recursively flattens all arrays

Given a sample.yml file of:

yaml

- 1
- - 2
- - - 3

then

bash

yq 'flatten' sample.yml

will output

yaml

- 1
- 2
- 3

Flatten with depth of one

Given a sample.yml file of:

yaml

- 1
- - 2
- - - 3

then

bash

yq 'flatten(1)' sample.yml

will output

yaml

- 1
- 2
- - 3

Given a sample.yml file of:

yaml

- []

then

bash

yq 'flatten' sample.yml

will output

yaml

[]

Given a sample.yml file of:

yaml

- foo: bar
- - foo: baz

then

bash

yq 'flatten' sample.yml

will output

yaml

- foo: bar
- foo: baz