SIFT具有比其他大多数grep选择略有不同的焦点。代码搜索、日志搜索/数字取证和数据处理是主要用例，但主要目标是提供安全的默认值，并使其易于为特定的用例配置。(sift has a slightly different focus than most other grep alternatives. Code search, log search / digital forensics and data processing are the main use cases, but the primary goal is to provide safe defaults and to make it easily configurable for a specific use case.)