如何获得文件创建日期在Linux呢？ [英] How to get file creation date in Linux?

问题描述

我与包含有关在其生命的不同时期同一个对象，并命令他们是创建日期的唯一途径信息的文件批工作。
我用的是这样的：

I am working with batches of files that contain information about the same object at the different times of its life, and the only way to order them is by creation date. I was using this:

//char* buffer has the name of file
struct stat buf;
FILE *tf;
tf = fopen(buffer,"r");
//check handle
fstat(tf, &buf);
fclose(tf);
pMyObj->lastchanged=buf.st_mtime;

但是，这并不似乎工作。
我究竟做错了什么？是否有其他更可靠的/简单的方法来获得Linux下的文件创建日期？

But that does not seems to work. What am I doing wrong? Are there other, more reliable/simple ways to get file creation date under Linux?

推荐答案

在文件描述符FSTAT的作品，而不是文件结构。最简单的版本：

fstat works on file descriptors, not FILE structures. The simplest version:

#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>

#ifdef HAVE_ST_BIRTHTIME
#define birthtime(x) x.st_birthtime
#else
#define birthtime(x) x.st_ctime
#endif

int main(int argc, char *argv[])
{
        struct stat st;
        size_t i;

        for( i=1; i<argc; i++ )
        {
                if( stat(argv[i], &st) != 0 )
                        perror(argv[i]);
                printf("%i\n", birthtime(st));
        }

        return 0;
}

您将需要通过检查SYS / stat.h或使用某种类型的autoconf构造搞清楚，如果你的系统有st_birthtime在其统计的结构。

You will need to figure out if your system has st_birthtime in its stat structure by inspecting sys/stat.h or using some kind of autoconf construct.

这篇关于如何获得文件创建日期在Linux呢？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！