| SetOwnerAndGroupIsRestricted | System.Posix.Files, System.Posix |
| Start | System.Posix.Terminal, System.Posix |
| StartStopInput | System.Posix.Terminal, System.Posix |
| StartStopOutput | System.Posix.Terminal, System.Posix |
| Stop | System.Posix.Terminal, System.Posix |
| Stopped | System.Posix.Process, System.Posix |
| StripHighBit | System.Posix.Terminal, System.Posix |
| Suspend | System.Posix.Terminal, System.Posix |
| SuspendOutput | System.Posix.Terminal, System.Posix |
| SymbolicLinkLimit | System.Posix.Files, System.Posix |
| SyncIOAvailable | System.Posix.Files, System.Posix |
| SynchronousWrites | System.Posix.IO, System.Posix |
| SysVar | System.Posix.Unistd, System.Posix |
| SystemID |
| 1 (Type/Class) | System.Posix.Unistd, System.Posix |
| 2 (Data Constructor) | System.Posix.Unistd, System.Posix |
| seekDirStream | System.Posix.Directory, System.Posix |
| sendBreak | System.Posix.Terminal, System.Posix |
| setEnv | System.Posix.Env, System.Posix |
| setFdMode | System.Posix.Files, System.Posix |
| setFdOption | System.Posix.IO, System.Posix |
| setFdOwnerAndGroup | System.Posix.Files, System.Posix |
| setFdSize | System.Posix.Files, System.Posix |
| setFileCreationMask | System.Posix.Files, System.Posix |
| setFileMode | System.Posix.Files, System.Posix |
| setFileSize | System.Posix.Files, System.Posix |
| setFileTimes | System.Posix.Files, System.Posix |
| setGroupID | System.Posix.User, System.Posix |
| setGroupIDMode | System.Posix.Files, System.Posix |
| setLock | System.Posix.IO, System.Posix |
| setOwnerAndGroup | System.Posix.Files, System.Posix |
| setProcessGroupID | System.Posix.Process, System.Posix |
| setProcessGroupPriority | System.Posix.Process, System.Posix |
| setProcessPriority | System.Posix.Process, System.Posix |
| setResourceLimit | System.Posix.Resource, System.Posix |
| setSymbolicLinkOwnerAndGroup | System.Posix.Files, System.Posix |
| setTerminalAttributes | System.Posix.Terminal, System.Posix |
| setTerminalProcessGroupID | System.Posix.Terminal, System.Posix |
| setUserID | System.Posix.User, System.Posix |
| setUserIDMode | System.Posix.Files, System.Posix |
| setUserPriority | System.Posix.Process, System.Posix |
| sigWINCH | System.Posix.Signals.Exts |
| sleep | System.Posix.Unistd, System.Posix |
| softLimit | System.Posix.Resource, System.Posix |
| specialDeviceID | System.Posix.Files, System.Posix |
| statusChangeTime | System.Posix.Files, System.Posix |
| stdError | System.Posix.IO, System.Posix |
| stdFileMode | System.Posix.Files, System.Posix |
| stdInput | System.Posix.IO, System.Posix |
| stdOutput | System.Posix.IO, System.Posix |
| systemName | System.Posix.Unistd, System.Posix |
| systemTime | System.Posix.Process, System.Posix |
