Update a scalar with yq

bash

yq -i '.app.version = "1.2.0"' app.yaml

Explanation

A convenient way to bump versions or toggle config values automatically.

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Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.

Same sheet · prioritizing Scalar gotchas

Extract a single value from a YAML file.

Open In sheetbashsame section

Avoid implicit booleans by quoting risky strings.

Open In sheetyamlsame section

Prevent timestamps and date-like tokens from being auto-typed.

Open In sheetyamlsame section

Use an unquoted scalar when no escaping is needed.

Open In sheetyaml1 tag match

Keep backslashes literal and avoid interpolation-like behavior.

Open In sheetyaml1 tag match

Use escapes like newline and tab in YAML strings.

Open In sheetyaml1 tag match