Index - L
| letter | Turtle.Pattern, Turtle |
| liftA2 | Turtle |
| liftIO | Turtle.Shell, Turtle |
| limit | Turtle.Prelude, Turtle |
| limitWhile | Turtle.Prelude, Turtle |
| lower | Turtle.Pattern, Turtle |
| ls | Turtle.Prelude, Turtle |
| lstree | Turtle.Prelude, Turtle |
turtle-1.2.1: Shell programming, Haskell-style