$ gradle --tasks

Unknown command-line option '--tasks'.

USAGE: gradle [option...] [task...]

-?, -h, --help Shows this help message.
-a, --no-rebuild Do not rebuild project dependencies.
-b, --build-file Specifies the build file.
-C, --cache Specifies how compiled build scripts should be cached. Possible values are: 'rebuild' and 'on'. Default value is 'on' [deprecated - Use '--rerun-tasks' or '--recompile-scripts' instead]
-c, --settings-file Specifies the settings file.
--continue Continues task execution after a task failure.
-D, --system-prop Set system property of the JVM (e.g. -Dmyprop=myvalue).
-d, --debug Log in debug mode (includes normal stacktrace).
--daemon Uses the Gradle daemon to run the build. Starts the daemon if not running.
--foreground Starts the Gradle daemon in the foreground. [incubating]
-g, --gradle-user-home Specifies the gradle user home directory.
--gui Launches the Gradle GUI.
-I, --init-script Specifies an initialization script.
-i, --info Set log level to info.
-m, --dry-run Runs the builds with all task actions disabled.
--no-color Do not use color in the console output.
--no-daemon Do not use the Gradle daemon to run the build.
--no-opt Ignore any task optimization. [deprecated - Use '--rerun-tasks' instead]
--offline The build should operate without accessing network resources.
-P, --project-prop Set project property for the build script (e.g. -Pmyprop=myvalue).
-p, --project-dir Specifies the start directory for Gradle. Defaults to current directory.
--parallel Build projects in parallel. Gradle will attempt to determine the optimal number of executor threads to use. [incubating]
--parallel-threads Build projects in parallel, using the specified number of executor threads. [incubating]
--profile Profiles build execution time and generates a report in the <build_dir>/reports/profile directory.
--project-cache-dir Specifies the project-specific cache directory. Defaults to .gradle in the root project directory.
-q, --quiet Log errors only.
--recompile-scripts Force build script recompiling.
--refresh Refresh the state of resources of the type(s) specified. Currently only 'dependencies' is supported. [deprecated - Use '--refresh-dependencies' instead.]
--refresh-dependencies Refresh the state of dependencies.
--rerun-tasks Ignore previously cached task results.
-S, --full-stacktrace Print out the full (very verbose) stacktrace for all exceptions.
-s, --stacktrace Print out the stacktrace for all exceptions.
--stop Stops the Gradle daemon if it is running.
-u, --no-search-upward Don't search in parent folders for a settings.gradle file.
-v, --version Print version info.
-x, --exclude-task Specify a task to be excluded from execution.

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