| Platform {base} | R Documentation |
.Platform is a list with functions and variables as
components. This provides a possibility to write OS portable R
code. However, this interface is still somewhat experimental.
Currently, .Platform <- Platform() when R starts up. This is
even more experimental.
.Platform Platform()
.Platform is list with at least the following components:
OS.type |
character, giving the Operating System
(family) of the computer. One of the following values is returned:
"unix", "mac", or "windows" (in historical order). |
file.sep |
character, giving the file separator,
used on your platform, e.g., "/" on Unix alikes.
|
dynlib.ext |
character, giving the file name extension of
dynamically loadable libraries, e.g., ".dll" on
Windows.
|
system for invoking platform specific system commands.
if(.Platform$ OS.type == "unix") {
system.test <- function(...) { system(paste("test", ...)) == 0 }
dir.exists <- function(dir) sapply(dir, function(d)system.test("-d", d))
dir.exists(c(R.home(), "/tmp", "~", "/NO"))# > T T T F
}