Index - C
| cache | Turtle.Prelude, Turtle |
| cat | Turtle.Prelude, Turtle |
| cd | Turtle.Prelude, Turtle |
| char | Turtle.Pattern, Turtle |
| chars | Turtle.Pattern, Turtle |
| chars1 | Turtle.Pattern, Turtle |
| chmod | Turtle.Prelude, Turtle |
| choice | Turtle.Pattern, Turtle |
| cmax | Turtle.Prelude, Turtle |
| cmin | Turtle.Prelude, Turtle |
| collapse | Turtle |
| CommandName | |
| 1 (Type/Class) | Turtle.Options, Turtle |
| 2 (Data Constructor) | Turtle.Options, Turtle |
| commonPrefix | Turtle |
| contains | Turtle.Pattern, Turtle |
| copymod | Turtle.Prelude, Turtle |
| count | Turtle.Pattern, Turtle |
| countChars | Turtle.Prelude, Turtle |
| countLines | Turtle.Prelude, Turtle |
| countWords | Turtle.Prelude, Turtle |
| cp | Turtle.Prelude, Turtle |
| cptree | Turtle.Prelude, Turtle |
| crlf | Turtle.Pattern, Turtle |
| cut | Turtle.Prelude, Turtle |