blocks|key|1803440|text|可以从/proc/cpuinfo中提取的关于处理器的信息。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1803441|要获得序列号，您应该查看一下dmidecode。我现在没有查看，但dmidecode可以向您显示序列号，因此我将从那里开始。|1803442|entityMap^0|3|D|0|E|9|X|9|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|R|8|@]|D|@]|E|$]]]|I|$]]

The Informations about the processor you could extract from <code>/proc/cpuinfo</code>.

To get the Serial Number you should have a look at <code>dmidecode</code>. I didn't look in there right now, but <code>dmidecode</code> is able to show you the serial number, so i would start there.

blocks|key|1803447|text|此程序将帮助您以编程方式运行Linux命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1803448|char*+GetSystemOutput(char*+cmd)
{
++++int+buff_size+=+32;
++++char*+buff+=+new+char[buff_size];

++++char*+ret+=+NULL;
++++string+str+=+"";

++++int+fd[2];
++++int+old_fd[3];
++++pipe(fd);

++++old_fd[0]+=+dup(STDIN_FILENO);
++++old_fd[1]+=+dup(STDOUT_FILENO);
++++old_fd[2]+=+dup(STDERR_FILENO);

++++int+pid+=+fork();
++++switch(pid)
++++{
++++++++case+0:
+++++++++++++++close(fd[0]);
+++++++++++++++close(STDOUT_FILENO);
+++++++++++++++close(STDERR_FILENO);
+++++++++++++++dup2(fd[1],+STDOUT_FILENO);
+++++++++++++++dup2(fd[1],+STDERR_FILENO);
+++++++++++++++system(cmd);
+++++++++++++++//execlp((const+char*)cmd,+cmd,0);
+++++++++++++++close+(fd[1]);
+++++++++++++++exit(0);
+++++++++++++++break;

++++++++case+-1:
+++++++++++++++cerr+<<+"GetSystemOutput/fork()+error\n"+<<+endl;
+++++++++++++++exit(1);

++++++++default:
+++++++++++++++close(fd[1]);
+++++++++++++++dup2(fd[0],+STDIN_FILENO);

+++++++++++++++int+rc+=+1;
+++++++++++++++while+(rc+>+0)
+++++++++++++++{
+++++++++++++++++++rc+=+read(fd[0],+buff,+buff_size);
+++++++++++++++++++str.append(buff,+rc);
+++++++++++++++++++//memset(buff,+0,+buff_size);
+++++++++++++++}

+++++++++++++++ret+=+new+char+[strlen((char*)str.c_str())];

+++++++++++++++strcpy(ret,+(char*)str.c_str());

+++++++++++++++waitpid(pid,+NULL,+0);
+++++++++++++++close(fd[0]);
++++}

++++dup2(STDIN_FILENO,+old_fd[0]);
++++dup2(STDOUT_FILENO,+old_fd[1]);
++++dup2(STDERR_FILENO,+old_fd[2]);

++++return+ret;
}|code-block|syntax|javascript|1803449|接口用途：GetSystemOutput("/usr/bin/lsb_release+-a")|offset|length|style|CODE|1803450|并遵循以下命令：|1803451|cat+/proc/cpuinfo+=+tells+you+CPU+information|1803452|entityMap^0|0|0|5|16|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@$I|V|J|W|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|Y|8|@]|9|@]|A|$E|F]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

This program will help you run Linux commands programmatically:

<pre><code>char* GetSystemOutput(char* cmd)
{
 int buff_size = 32;
 char* buff = new char[buff_size];

 char* ret = NULL;
 string str = "";

 int fd[2];
 int old_fd[3];
 pipe(fd);

 old_fd[0] = dup(STDIN_FILENO);
 old_fd[1] = dup(STDOUT_FILENO);
 old_fd[2] = dup(STDERR_FILENO);

 int pid = fork();
 switch(pid)
 {
 case 0:
 close(fd[0]);
 close(STDOUT_FILENO);
 close(STDERR_FILENO);
 dup2(fd[1], STDOUT_FILENO);
 dup2(fd[1], STDERR_FILENO);
 system(cmd);
 //execlp((const char*)cmd, cmd,0);
 close (fd[1]);
 exit(0);
 break;

 case -1:
 cerr &lt;&lt; "GetSystemOutput/fork() error\n" &lt;&lt; endl;
 exit(1);

 default:
 close(fd[1]);
 dup2(fd[0], STDIN_FILENO);

 int rc = 1;
 while (rc &gt; 0)
 {
 rc = read(fd[0], buff, buff_size);
 str.append(buff, rc);
 //memset(buff, 0, buff_size);
 }

 ret = new char [strlen((char*)str.c_str())];

 strcpy(ret, (char*)str.c_str());

 waitpid(pid, NULL, 0);
 close(fd[0]);
 }

 dup2(STDIN_FILENO, old_fd[0]);
 dup2(STDOUT_FILENO, old_fd[1]);
 dup2(STDERR_FILENO, old_fd[2]);

 return ret;
}
</code></pre>

API usage: <code>GetSystemOutput("/usr/bin/lsb_release -a")</code>

And following the commands:

<pre><code>cat /proc/cpuinfo = tells you CPU information
</code></pre>

blocks|key|1588919|text|有一个cpuinfo.h包含在GCC中。它是安全的，使用它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1588920|示例(我有一个叫GCC的4.7%2B，在这里使用auto很开心)：|1588921|#include+<cpuid.h>
#include+<iostream>
#include+<map>
#include+<string>

using+namespace+std;

struct+CPUVendorID+{
++++unsigned+int+ebx;
++++unsigned+int+edx;
++++unsigned+int+ecx;

++++string+toString()+const+{
++++++++return+string(reinterpret_cast<const+char+*>(this),+12);
++++}
};

int+main()+{
++++unsigned+int+level+=+0;
++++unsigned+int+eax+=+0;
++++unsigned+int+ebx;
++++unsigned+int+ecx;
++++unsigned+int+edx;

++++__get_cpuid(level,+&eax,+&ebx,+&ecx,+&edx);

++++CPUVendorID+vendorID+{+.ebx+=+ebx,+.edx+=+edx,+.ecx+=+ecx+};

++++map<string,+string>+vendorIdToName;
++++vendorIdToName["GenuineIntel"]+=+"Intel";
++++vendorIdToName["AuthenticAMD"]+=+"AMD";
++++vendorIdToName["CyrixInstead"]+=+"Cyrix";
++++vendorIdToName["CentaurHauls"]+=+"Centaur";
++++vendorIdToName["SiS+SiS+SiS+"]+=+"SiS";
++++vendorIdToName["NexGenDriven"]+=+"NexGen";
++++vendorIdToName["GenuineTMx86"]+=+"Transmeta";
++++vendorIdToName["RiseRiseRise"]+=+"Rise";
++++vendorIdToName["UMC+UMC+UMC+"]+=+"UMC";
++++vendorIdToName["Geode+by+NSC"]+=+"National+Semiconductor";

++++string+vendorIDString+=+vendorID.toString();

++++auto+it+=+vendorIdToName.find(vendorIDString);
++++string+vendorName+=+(it+==+vendorIdToName.end())+?+"Unknown"+:+it->second;

++++cout+<<+"Max+instruction+ID:+"+<<+eax+<<+endl;
++++cout+<<+"Vendor+ID:+"+<<+vendorIDString+<<+endl;
++++cout+<<+"Vendor+name:+"+<<+vendorName+<<+endl;
}|code-block|syntax|javascript|1588922|输出：|1588923|$+make
g%2B%2B+--std=c%2B%2B11+main.cc+-o+cpuid
$+./cpuid+
Max+instruction+ID:+6
Vendor+ID:+GenuineIntel
Vendor+name:+Intel|1588924|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

There is a cpuinfo.h include in GCC. It is safe, use it.

Sample (I have GCC 4.7+ and feel happy of using "auto" here):

<pre><code>#include &lt;cpuid.h&gt;
#include &lt;iostream&gt;
#include &lt;map&gt;
#include &lt;string&gt;

using namespace std;

struct CPUVendorID {
 unsigned int ebx;
 unsigned int edx;
 unsigned int ecx;

 string toString() const {
 return string(reinterpret_cast&lt;const char *&gt;(this), 12);
 }
};

int main() {
 unsigned int level = 0;
 unsigned int eax = 0;
 unsigned int ebx;
 unsigned int ecx;
 unsigned int edx;

 __get_cpuid(level, &amp;eax, &amp;ebx, &amp;ecx, &amp;edx);

 CPUVendorID vendorID { .ebx = ebx, .edx = edx, .ecx = ecx };

 map&lt;string, string&gt; vendorIdToName;
 vendorIdToName["GenuineIntel"] = "Intel";
 vendorIdToName["AuthenticAMD"] = "AMD";
 vendorIdToName["CyrixInstead"] = "Cyrix";
 vendorIdToName["CentaurHauls"] = "Centaur";
 vendorIdToName["SiS SiS SiS "] = "SiS";
 vendorIdToName["NexGenDriven"] = "NexGen";
 vendorIdToName["GenuineTMx86"] = "Transmeta";
 vendorIdToName["RiseRiseRise"] = "Rise";
 vendorIdToName["UMC UMC UMC "] = "UMC";
 vendorIdToName["Geode by NSC"] = "National Semiconductor";

 string vendorIDString = vendorID.toString();

 auto it = vendorIdToName.find(vendorIDString);
 string vendorName = (it == vendorIdToName.end()) ? "Unknown" : it-&gt;second;

 cout &lt;&lt; "Max instruction ID: " &lt;&lt; eax &lt;&lt; endl;
 cout &lt;&lt; "Vendor ID: " &lt;&lt; vendorIDString &lt;&lt; endl;
 cout &lt;&lt; "Vendor name: " &lt;&lt; vendorName &lt;&lt; endl;
}
</code></pre>

Output:

<pre><code>$ make
g++ --std=c++11 main.cc -o cpuid
$ ./cpuid 
Max instruction ID: 6
Vendor ID: GenuineIntel
Vendor name: Intel
</code></pre>

blocks|key|1588926|text|#include+<stdio.h>

void+getPSN(char+*PSN)
{
++++int+varEAX,+varEBX,+varECX,+varEDX;
++++char+str[9];
++++//%25eax=1+gives+most+significant+32+bits+in+eax+
++++__asm__+__volatile__+("cpuid"+++:+"=a"+(varEAX),+"=b"+(varEBX),+"=c"+(varECX),+"=d"+(varEDX)+:+"a"+(1));
++++sprintf(str,+"%2508X",+varEAX);+//i.e.+XXXX-XXXX-xxxx-xxxx-xxxx-xxxx
++++sprintf(PSN,+"%25C%25C%25C%25C-%25C%25C%25C%25C",+str[0],+str[1],+str[2],+str[3],+str[4],+str[5],+str[6],+str[7]);
++++//%25eax=3+gives+least+significant+64+bits+in+edx+and+ecx+[if+PN+is+enabled]
++++__asm__+__volatile__+("cpuid"+++:+"=a"+(varEAX),+"=b"+(varEBX),+"=c"+(varECX),+"=d"+(varEDX)+:+"a"+(3));
++++sprintf(str,+"%2508X",+varEDX);+//i.e.+xxxx-xxxx-XXXX-XXXX-xxxx-xxxx
++++sprintf(PSN,+"%25s-%25C%25C%25C%25C-%25C%25C%25C%25C",+PSN,+str[0],+str[1],+str[2],+str[3],+str[4],+str[5],+str[6],+str[7]);
++++sprintf(str,+"%2508X",+varECX);+//i.e.+xxxx-xxxx-xxxx-xxxx-XXXX-XXXX
++++sprintf(PSN,+"%25s-%25C%25C%25C%25C-%25C%25C%25C%25C",+PSN,+str[0],+str[1],+str[2],+str[3],+str[4],+str[5],+str[6],+str[7]);
}

int+main()
{
+++++char+PSN[30];+//24+Hex+digits,+5+'-'+separators,+and+a+'\0'
+++++getPSN(PSN);
++++printf("%25s\n",+PSN);+//compare+with:+lshw+%7C+grep+serial:
+++++return+0;
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1588927|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>#include &lt;stdio.h&gt;

void getPSN(char *PSN)
{
 int varEAX, varEBX, varECX, varEDX;
 char str[9];
 //%eax=1 gives most significant 32 bits in eax 
 __asm__ __volatile__ ("cpuid" : "=a" (varEAX), "=b" (varEBX), "=c" (varECX), "=d" (varEDX) : "a" (1));
 sprintf(str, "%08X", varEAX); //i.e. XXXX-XXXX-xxxx-xxxx-xxxx-xxxx
 sprintf(PSN, "%C%C%C%C-%C%C%C%C", str[0], str[1], str[2], str[3], str[4], str[5], str[6], str[7]);
 //%eax=3 gives least significant 64 bits in edx and ecx [if PN is enabled]
 __asm__ __volatile__ ("cpuid" : "=a" (varEAX), "=b" (varEBX), "=c" (varECX), "=d" (varEDX) : "a" (3));
 sprintf(str, "%08X", varEDX); //i.e. xxxx-xxxx-XXXX-XXXX-xxxx-xxxx
 sprintf(PSN, "%s-%C%C%C%C-%C%C%C%C", PSN, str[0], str[1], str[2], str[3], str[4], str[5], str[6], str[7]);
 sprintf(str, "%08X", varECX); //i.e. xxxx-xxxx-xxxx-xxxx-XXXX-XXXX
 sprintf(PSN, "%s-%C%C%C%C-%C%C%C%C", PSN, str[0], str[1], str[2], str[3], str[4], str[5], str[6], str[7]);
}

int main()
{
 char PSN[30]; //24 Hex digits, 5 '-' separators, and a '\0'
 getPSN(PSN);
 printf("%s\n", PSN); //compare with: lshw | grep serial:
 return 0;
}
</code></pre>

How can I get the machine serial number and CPU ID in a Linux system?

Sample code is highly appreciated.

Getting the machine serial number and CPU ID using C/C++ in Linux

如何在Linux系统中获取机器序列号和CPU ID？示例代码是高度赞赏的。

问在Linux中使用C/C++获取机器序列号和CPU ID
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