$ cd [プロジェクトルート]
$ ./gradlew tasks

上記を実行すると実行可能なGradleとその説明が確認できます。例えばlint関連の実行可能タスクのみ確認する場合は./gradlew tasks | grep lintを実行します。

$ cd [プロジェクトルート]
$ ./gradlew tasks | grep lint
lint - Runs lint on the default variant.
lintAnalyzeDebug - Run lint analysis on the debug variant
lintAnalyzeRelease - Run lint analysis on the release variant
lintDebug - Print text output from the corresponding lint report task
lintFix - Runs lint on the default variant and applies any safe suggestions to the source code.
lintFixDebug - Fix lint on the debug variant
lintFixRelease - Fix lint on the release variant
lintRelease - Print text output from the corresponding lint report task
lintReportDebug - Run lint on the debug variant
lintReportRelease - Run lint on the release variant
lintVitalAnalyzeRelease - Run lint analysis with only the fatal issues enabled on the release variant
lintVitalRelease - Print text output from the corresponding lint report task
lintVitalReportRelease - Run lint with only the fatal issues enabled on the release variant
updateLintBaseline - Updates the lint baseline using the default variant.
updateLintBaselineDebug - Update the lint baseline using the debug variant
updateLintBaselineRelease - Update the lint baseline using the release variant