# Dealing with permissions When writing cli apps you will invariably have to deal with file permissions and access rights in general. DCli provides a number tools and methods to help deal with permissions including tools that assist with cross platform development (linux/windows/osx). ## Run an app with escalated privileges One of DCli's strengths is its ability to spawn child cli apps: ``` 'grep debug *.log'.run ``` The above command will spawn grep as a child process and print its output to the cli. Under Linux and OSX --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://dcli.onepub.dev/articles/dealing-with-permissions.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.