yq

> A lightweight and portable command-line YAML processor.

Output a YAML file, in pretty-print format (v4+):

yq eval {path/to/file.yaml}

Output a YAML file, in pretty-print format (v3):

yq read {path/to/file.yaml} --colors

Output the first element in a YAML file that contains only an array (v4+):

yq eval '.[0]' {path/to/file.yaml}

Output the first element in a YAML file that contains only an array (v3):

yq read {path/to/file.yaml} '[0]'

Set (or overwrite) a key to a value in a file (v4+):

yq eval '.{key} = "{value}"' --inplace {path/to/file.yaml}

Set (or overwrite) a key to a value in a file (v3):

yq write --inplace {path/to/file.yaml} '{key}' '{value}'

Merge two files and print to stdout (v4+):

yq eval-all 'select(filename == "{path/to/file1.yaml}") * select(filename == "{path/to/file2.yaml}")' {path/to/file1.yaml} {path/to/file2.yaml}

Merge two files and print to stdout (v3):

yq merge {path/to/file1.yaml} {path/to/file2.yaml} --colors

> This work is licensed under the Creative Commons Attribution 4.0 International License (CC-BY).

-- Response ended

-- Page fetched on Fri May 17 12:36:22 2024