| TerminalAttributes | System.Posix.Terminal, System.Posix |
| TerminalMode | System.Posix.Terminal, System.Posix |
| TerminalState | System.Posix.Terminal, System.Posix |
| Terminated | System.Posix.Process, System.Posix |
| TransmitStart | System.Posix.Terminal, System.Posix |
| TransmitStop | System.Posix.Terminal, System.Posix |
| TwoStopBits | System.Posix.Terminal, System.Posix |
| tellDirStream | System.Posix.Directory, System.Posix |
| terminalMode | System.Posix.Terminal, System.Posix |
| throwErrnoPath | System.Posix.Error |
| throwErrnoPathIf | System.Posix.Error |
| throwErrnoPathIfMinus1 | System.Posix.Error |
| throwErrnoPathIfMinus1_ | System.Posix.Error |
| throwErrnoPathIfNull | System.Posix.Error |
| throwErrnoPathIf_ | System.Posix.Error |
| touchFile | System.Posix.Files, System.Posix |
| trunc | System.Posix.IO, System.Posix |
