Reports system and user information.
This uses POSIX or Windows system calls. Note that OS names (
sysname) might not
be what you expect: for example macOS identifies itself as
Darwin and Solaris as SunOS.
Sys.info() returns details of the platform R is running on,
R.version gives details of the platform R was
built on: the
version may well be different.
A character vector with fields
The operating system name.
The OS release.
The OS version.
A name by which the machine is known on the network (if any).
A concise description of the hardware, often the CPU type.
The user's login name, or
The name of the real user ID, or
The name of the effective user ID, or
The first five fields come from the
uname(2) system call. The
login name comes from
getlogin(2), and the user names from
The last three fields give the same value.
The meaning of
version is system-dependent:
on a Unix-alike they normally refer to the kernel. There, usually
release contains a numeric version and
additional information. Examples for
"4.17.11-200.fc28.x86_64" # Linux (Fedora) "3.16.0-5-amd64" # Linux (Debian) "17.7.0" # macOS 10.13.6 "5.11" # Solaris
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.)
The use of alternatives such as
system("whoami") is not
portable: the POSIX command
system("id") is much more portable
on Unix-alikes, provided only the POSIX options -[Ggu][nr] are
used (and not the many BSD and GNU extensions).
id -un (on Solaris,
Windows may report unexpected versions: there, see the help for
sessionInfo() gives a synopsis of both your system and
the R session (and gives the OS version in a human-readable form).
Sys.info() ## An alternative (and probably better) way to get the login name on Unix Sys.getenv("LOGNAME")
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