Simple wrapper for .Platform$OS.type, returns character(1).
Predicate for OS string, returns logical(1). Currently this would include Unix, Linux and Mac flavours.
Predicate for sysname string, returns logical(1).
Predicate for sysname string, returns logical(1).
Predicate for OS string, returns logical(1).
getOperatingSystem()isWindows()
isUnix()
isLinux()
isDarwin()
See above.