# fadvise > Control Linux file caching behavior. > See also: `fincore`. > More information: . - Preload a file or directory into cache: `fadvise {{[-a|--advice]}} willneeded {{path/to/file_or_directory}}` - Suggest dropping a file from cache: `fadvise {{path/to/file}}` - Display help: `fadvise {{[-h|--help]}}`