Sys.info {base}

R Documentation

Extract System and User Information

Description

Reports system and user information.

Usage

Sys.info()

Details

This function is not implemented on all R platforms, and returns NULL when not available. Where possible it is based on POSIX system calls.

Sys.info() returns details of the platform R is running on, whereas R.version gives details of the platform R was built on: they may well be different.

Value

A character vector with fields

sysname	The operating system.
release	The OS release.
version	The OS version.
nodename	A name by which the machine is known on the network (if any).
machine	A concise description of the hardware.
login	The user's login name, or "unknown" if it cannot be ascertained.
user	The name of the real user ID, or "unknown" if it cannot be ascertained.

The first five fields come from the uname(2) system call. The login name comes from getlogin(2), and the user name from getpwuid(getuid())

Note

The meaning of OS ‘release’ and ‘version’ is system-dependent and there is no guarantee that the node or login or user names will be what you might reasonably expect. (In particular on some Linux distributions the login name is unknown from sessions with re-directed inputs.)

See Also

.Platform, and R.version. sessionInfo() gives a synopsis of both your system and the R session.

Examples

Sys.info()
## An alternative (and probably better) way to get the login name on Unix
Sys.getenv("LOGNAME")

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