NAME
uname —
get system identification
LIBRARY
library “libc”
SYNOPSIS
#include
<sys/utsname.h>
int
uname(struct
utsname *name);
DESCRIPTION
Theuname()
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.
- nodename
- Network name of this machine.
- release
- Release level of the operating system.
- version
- Version level of the operating system.
- machine
- Machine hardware platform.
RETURN VALUES
The uname() function returns the
value 0 if successful; otherwise the value -1 is returned and
the global variable errno is set to indicate the
error.
ENVIRONMENT
UNAME_s- If the environment or varsym variable
UNAME_sis set, it will override the sysname member. UNAME_r- If the environment or varsym variable
UNAME_ris set, it will override the release member. UNAME_v- If the environment or varsym variable
UNAME_vis set, it will override the version member. UNAME_m- If the environment or varsym variable
UNAME_mis set, it will override the machine member.
Environment variables have priority over varsym variables.
ERRORS
The uname() function may fail and set
errno for any of the errors specified for the library
functions sysctl(3).
SEE ALSO
STANDARDS
The uname() function conforms to
IEEE Std 1003.1-1988 (“POSIX.1”).
HISTORY
The uname() function first appeared in
4.4BSD.