UpdateCommand

UpdateCommand is a generic command used in software systems to modify existing resources or data. It is commonly exposed as a command-line interface (CLI) action or as part of scripting libraries, designed to apply new values to a target identified by an ID or key. The core function is to perform an update operation, which may involve replacing fields, applying patches, or setting new configurations.

In typical implementations, UpdateCommand supports specifying the target resource, the changes to apply, and optional controls such as dry-run, verbose output, or forceful override. Update operations often include support for partial updates (patch semantics), validation of new values, and conflict handling through versioning or optimistic locking. Some variants provide transactional semantics to ensure updates are atomic, while others perform updates in a best-effort manner. Common options include identifiers, field-value pairs, and flags that alter behavior (for example, --dry-run to preview changes or --force to override safeguards).

UpdateCommand appears in various contexts, including database management, configuration management, software deployment tooling, and package managers. In databases, an update action translates to modifying existing records; in configuration or deployment tools, it changes settings or deployment parameters; in package managers, it can upgrade or modify installed components. The command is typically designed to be composable with other commands, allowing scripted sequences that apply updates across multiple resources.

Usage examples are environment- and implementation-specific, but a generic form might resemble: UpdateCommand update resource-id --field1 value1 --field2 value2. Considerations for reliable use include validation of inputs, handling of conflicts, rollback strategies, and clear user feedback on the result of the operation.