Output format

Flags to control yaml and json output format

These flags are available for all yq commands.
Color
By default, yq prints with colours if it detects a terminal. You can manually change this by using either
The --colors/-C flag to force print with colors.
The --no-colors/-M flag to force print without colours
Pretty Print
To print out idiomatic yaml use the --prettyPrint/-P flag. Note that this is shorthand for using the style operator ... style=""
Indent
Use the indent flag --indent/-I to control the number of spaces used for indentation. This also works for JSON output. The default value is 2.
Note that lists are indented at the same level as the map key at indent level 2, but are more deeply indented at indent level 4 and greater. This is (currently) a quirk of the underlying yaml parser.
Given:
apples:
  collection:
  - name: Green
  - name: Blue
  favourite: Pink Lady
Then:
yq -I4 sample.yaml
Will print out:
apples:
    collection:
      - name: Green
      - name: Blue
    favourite: Pink Lady
This also works with json
yq -j -I4 sample.yaml
yields
{
    "apples": {
        "collection": [
            {
                "name": "Green"
            },
            {
                "name": "Blue"
            }
        ],
        "favourite": "Pink Lady"
    }
}
Unwrap scalars
By default scalar values are 'unwrapped', that is only their value is printed (except when outputting as JSON). To print out the node as-is, with the original formatting an any comments pass in --unwrapScalar=false
Given data.yml:
a: "Things" # cool stuff
Then:
yq --unwrapScalar=false '.a' data.yml
Will yield:
"Things" # cool stuff
where as without setting the flag to false you would get:
Things

With

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Working with CSV, TSV

Last modified 5mo ago