仅以秒为单位获取SunOS UNIX盒的正常运行时间

问题描述

如何确定以秒为单位的SunOS UNIX机器的正常运行时间?

How do I determine the uptime on a SunOS UNIX box in seconds only?

在Linux上，我可以简单地将/proc/uptime&接受第一个参数:

On Linux, I could simply cat /proc/uptime & take the first argument:

cat /proc/uptime | awk '{print $1}'

我试图在SunOS UNIX上执行相同的操作，但是没有/proc/uptime.有一个正常运行时间命令，显示以下输出:

I'm trying to do the same on a SunOS UNIX box, but there is no /proc/uptime.There is an uptime command which presents the following output:

$ uptime
12:13pm  up 227 day(s), 15:14,  1 user,  load average: 0.05, 0.05, 0.05

我真的不想写代码将日期仅转换为秒&；我确定有人一定曾经有此要求，但我无法在互联网上找到任何东西.

I don't really want to have to write code to convert the date into seconds only & I'm sure someone must have had this requirement before but I have been unable to find anything on the internet.

有人可以告诉我如何在几秒钟内获得正常运行时间吗?

Can anyone tell me how to get the uptime in just seconds?

TIA

推荐答案

如果您不介意编译小型C程序，则可以使用:

If you don't mind compiling a small C program, you could use:

#include <stdio.h>
#include <string.h>
#include <utmpx.h>

int main()
{
  int nBootTime = 0;
  int nCurrentTime = time ( NULL );
  struct utmpx * ent;

  while ( ( ent = getutxent ( ) ) ) {
    if ( !strcmp ( "system boot", ent->ut_line ) ) {
      nBootTime = ent->ut_tv.tv_sec;
    }
  }

  printf ( "System was booted %d seconds ago\n", nCurrentTime - nBootTime );
  endutxent();

  return 0;
}

来源: http://xaxxon.slackworks.com/rsapi/

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