[Linux] linux uname命令参数及用法详解(linux查看系统信息命令)

struct utsname 
{ char sysname[_UTSNAME_SYSNAME_LENGTH];//当前操作系统名 
char nodename[_UTSNAME_NODENAME_LENGTH];//网络上的名称 
char release[_UTSNAME_RELEASE_LENGTH];//当前发布级别 
char version[_UTSNAME_VERSION_LENGTH];//当前发布版本 
char machine[_UTSNAME_MACHINE_LENGTH];//当前硬件体系类型 
#if _UTSNAME_DOMAIN_LENGTH - 0 
/* Name of the domain of this node on the network. */ 
# ifdef __USE_GNU 
char domainname[_UTSNAME_DOMAIN_LENGTH]; //当前域名 
# else 
char __domainname[_UTSNAME_DOMAIN_LENGTH]; 
# endif 
#endif 
};

#include <sys/utsname.h> 
#include <stdio.h> 
#include <stdlib.h> 
int main() 
{ 
struct utsname testbuff; 
int fb=0; 
fb=uname(&testbuff); 
if(fb<0) 
{ 
perror("uname"); 
return 0; 
}else 
{ 
printf(" sysname:%s\n nodename:%s\n release:%s\n version:%s\n machine:%s\n \n ",\ 
testbuff.sysname,\ 
testbuff.nodename,\ 
testbuff.release,\ 
testbuff.version,\ 
testbuff.machine); 
#if _UTSNAME_DOMAIN_LENGTH - 0 
# ifdef __USE_GNU 
printf(" domainame:%s\n ",testbuff.domainname); 
//char domainname[_UTSNAME_DOMAIN_LENGTH]; //当前域名 
# else 
printf(" __domainame:%s\n ",testbuff.__domainname); 
//char __domainname[_UTSNAME_DOMAIN_LENGTH]; 
# endif 
#endif 
} 
return 0; 
}