NAME
uname —
get system
identification
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <sys/utsname.h>
int
uname(
struct
utsname *name);
DESCRIPTION
The
uname() function stores nul-terminated strings of
information identifying the current system into the structure referenced by
name.
The
utsname structure is defined in the
<sys/utsname.h> header file, and
contains the following members:
-
-
- sysname
- Name of the operating system implementation. Equivalent to
the sysctl(7)
kern.ostype variable.
-
-
- nodename
- Network name of this machine. Equivalent to the
sysctl(7)
kern.hostname variable.
-
-
- release
- Release level of the operating system. Equivalent to the
sysctl(7)
kern.osrelease variable.
-
-
- version
- Version level of the operating system. Equivalent to the
sysctl(7)
kern.version variable, except that very long values
are truncated, and newlines are converted to spaces.
-
-
- machine
- Machine hardware platform. Equivalent to the
sysctl(7)
hw.machine variable.
RETURN VALUES
If
uname is successful, 0 is returned, otherwise, -1 is
returned and
errno is set appropriately.
ERRORS
The
uname() function may fail and set
errno for any of the errors specified for the library
functions
sysctl(3).
SEE ALSO
uname(1),
sysctl(3)
STANDARDS
The
uname() function conforms to
IEEE Std
1003.1-1990 (“POSIX.1”).
HISTORY
The
uname function first appeared in
4.4BSD.