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Container → Replace Exact Text
AI-generatedSummary
Replace exact text in a target file inside a Docker container
Inputs
- containerId (required) — Container name or full/short container ID
- workingPath — Absolute path inside the container. Relative file paths resolve from here. Linux containers only.
- filePath (required) — Absolute path, or a path relative to Working Path
- oldText (required) — Exact UTF-8 text that must appear exactly once in the target file
- newText — Replacement text to write when Old Text matches exactly once
Output shape
updated file content as a string
Returned only when the replacement succeeds; otherwise an error is thrown.
Examples
Example 1: Update a JSON configuration key in a container file
containerId: "my-app", workingPath: "/workspace", filePath: "app/config.json", oldText: "oldValue", newText: "newValue"
Example 2: Replace a line in a plain‑text config file
containerId: "cd17c922acd6", workingPath: "/workspace", filePath: "settings.env", oldText: "DEBUG=false", newText: "DEBUG=true"