file.c

基于ARM9嵌入式开发板LINUX环境下的程序代码-linux file

/*
****************************************Copyright (c)**************************************************
**                               Guangzhou Zhiyuan Electronic Co.,LTD.
**                                     graduate school
**                                 http://www.zyinside.com
**
**------------------------------------- File Info ------------------------------------------------------
** File name:           file.c
** Last modified Date:  2006-01-11
** Last Version:        1.0
** Descriptions:        file and directory.
**------------------------------------------------------------------------------------------------------
** Created by:          Chenxibing
** Created date:        2006-01-11
** Version:             1.0
** Descriptions:        Preliminary version.
**
**------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
** Version:
** Descriptions:
**
********************************************************************************************************
*/
#include <stdio.h>
#include <fcntl.h>

int main(void)
{
    FILE *fp;
    int num;
    int folder;
   
    char a[] = "Hello ARM Linux!";
    
    fp = fopen("/tmp/linux.txt","w+");
    if(fp == NULL)
    {
        printf("\nFail to open linux.txt!\n");
        exit(-1);
    }

    num = fwrite(a, sizeof(a), 1, fp);
    printf("%d byte data has written to linux.txt\n", num*sizeof(a));

    folder =  mkdir("/tmp/linux", 1);
    if(folder == -1)
    {
        printf("\n Fail to create folder linux!\nIt has existed or the path is error!\n");
        exit(-1);
    }
    printf("Folder linux created success!\n");


    close(fp);
    return 0;
}