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1. getSystemID :: IO SystemID

   unix	System.Posix.Unistd

   No documentation available.

2. getEffectiveGroupID :: IO GroupID

   unix	System.Posix.User

   getEffectiveGroupID calls getegid to obtain the effective GroupID associated with the current process.

3. getEffectiveUserID :: IO UserID

   unix	System.Posix.User

   getEffectiveUserID calls geteuid to obtain the effective UserID associated with the current process.

4. getGroupEntryForID :: GroupID -> IO GroupEntry

   unix	System.Posix.User

   getGroupEntryForID gid calls getgrgid_r to obtain the GroupEntry information associated with GroupID gid. This operation may fail with isDoesNotExistError if no such group exists.

5. getRealGroupID :: IO GroupID

   unix	System.Posix.User

   getRealGroupID calls getgid to obtain the real GroupID associated with the current process.

6. getRealUserID :: IO UserID

   unix	System.Posix.User

   getRealUserID calls getuid to obtain the real UserID associated with the current process.

7. getUserEntryForID :: UserID -> IO UserEntry

   unix	System.Posix.User

   getUserEntryForID uid calls getpwuid_r to obtain the UserEntry information associated with UserID uid. This operation may fail with isDoesNotExistError if no such user exists.

8. groupID :: GroupEntry -> GroupID

   unix	System.Posix.User

   No documentation available.

9. setEffectiveGroupID :: GroupID -> IO ()

   unix	System.Posix.User

   setEffectiveGroupID uid calls setegid to set the effective group-id associated with the current process to gid. This does not update the real group-id or set-group-id.

10. setEffectiveUserID :: UserID -> IO ()

    unix	System.Posix.User

    setEffectiveUserID uid calls seteuid to set the effective user-id associated with the current process to uid. This does not update the real user-id or set-user-id.

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