05-30-2005
Unix is a family of operating systems. If you need a portable way to determine the ram size on all of them you are out of luck. That cannot be done. As an example, I believe that I could do this with HP-UX 11i provided that I am running as root. If you do not know your OS, run "uname -a" and post the results.
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LEARN ABOUT OPENSOLARIS
uname
uname(2) System Calls uname(2)
NAME
uname - get name of current operating system
SYNOPSIS
#include <sys/utsname.h>
int uname(struct utsname *name);
DESCRIPTION
The uname() function stores information identifying the current operating system in the structure pointed to by name.
The uname() function uses the utsname structure, defined in <sys/utsname.h>, whose members include:
char sysname[SYS_NMLN];
char nodename[SYS_NMLN];
char release[SYS_NMLN];
char version[SYS_NMLN];
char machine[SYS_NMLN];
The uname() function returns a null-terminated character string naming the current operating system in the character array sysname. Simi-
larly, the nodename member contains the name by which the system is known on a communications network. The release and version members fur-
ther identify the operating system. The machine member contains a standard name that identifies the hardware on which the operating system
is running.
RETURN VALUES
Upon successful completion, a non-negative value is returned. Otherwise, -1 is returned and errno is set to indicate the error.
ERRORS
The uname() function will fail if:
EFAULT The name argument points to an illegal address.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |Async-Signal-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
uname(1), sysinfo(2), sysconf(3C), attributes(5), standards(5)
SunOS 5.11 21 Jul 1999 uname(2)