gulp has very few flags to know about. All other flags are for tasks to use if needed.
-vor--versionwill display the global and local gulp versions--require <module path>will require a module before running the gulpfile. This is useful for transpilers but also has other applications. You can use multiple--requireflags--gulpfile <gulpfile path>will manually set path of gulpfile. Useful if you have multiple gulpfiles. This will set the CWD to the gulpfile directory as well--cwd <dir path>will manually set the CWD. The search for the gulpfile, as well as the relativity of all requires will be from here-Tor--taskswill display the task dependency tree for the loaded gulpfile--tasks-simplewill display a plaintext list of tasks for the loaded gulpfile--colorwill force gulp and gulp plugins to display colors even when no color support is detected--no-colorwill force gulp and gulp plugins to not display colors even when color support is detected--silentwill disable all gulp logging
The CLI adds process.env.INIT_CWD which is the original cwd it was launched from.
Tasks can be executed by running gulp <task> <othertask>. Just running gulp will execute the task you registered called default. If there is no default task gulp will error.
You can find a list of supported languages at interpret. If you would like to add support for a new language send pull request/open issues there.