R: determine if a script is running in Windows or Linux

Question

Is there a simple way to programmatically determine if an R script is being executed in Windows vs. Linux?

user_142879 · Answer

if(.Platform$OS.type == "unix") {
} else {

}

user_172261 · Answer

Sys.info()["sysname"]

user_211116 · Answer

.Platform$OS.type

returns

[1] "unix"

or something else.