+Update sdk database that may be used by `list` command.
+
+## `get-family-config`
+
+Returned SDK configuration as JSON format:
+
+```json
+{
+ "familyName": "xxx",
+ "description": "bla bla",
+ "rootDir": "/yyy/zzz",
+ "envSetupFilename": "my-envfilename*",
+ "scriptsDir": "scripts_path"
+}
+```
+
+where:
+
+- `familyName` : sdk familyName (usually same name used as xxx directory)
+- `rootDir` : root directory where SDK are/will be installed
+- `envSetupFilename` : sdk files (present in each sdk) that will be sourced to
+ setup sdk environment
+
+## `get-sdk-info`
+
+Extract SDK info, such as name, version, ... from a SDK tarball file (when
+--file option is set) or from a url (when --url option is set).
+
+This script may also be used to check that a SDK tarball file is correct in
+order to determine for example that the SDK family.