//屏幕回顯
#include<stdio.h>
#include<stdlib.h>
#include<unistd.h>
#include<string.h>
#include<sys/types.h>
#include<sys/stat.h>
#include<errno.h>
#include <fcntl.h>
#include<time.h>
void writeLog(const char* log,const char* path)
{
time_t Date;
struct tm* eventTime;
time(&Date); //獲取系統當前時間,置於Date中,Date值是秒
eventTime = localtime(&Date);
int iYear = eventTime->tm_year + 1900;
int iMon = eventTime->tm_mon + 1;
int iDay = eventTime->tm_mday;
int iHour = eventTime->tm_hour;
int iMin = eventTime->tm_min;
int iSec = eventTime->tm_sec;
//wday表示星期幾,星期一是1...
//yday表示距離1月1日多少天
char c_date[12];
sprintf(c_date, "%04d-%02d-%02d", iYear, iMon, iDay);
char c_time[12];
sprintf(c_time, "%02d:%02d:%02d", iHour, iMin, iSec);
char currTime[24];
sprintf(currTime, "%s %s: %s\n", c_date, c_time,log);
FILE *fd = fopen(path,"a+");
if(fd==NULL)
{
printf("open file error!");
return;
}
fputs(currTime,fd);
fclose(fd);
}
int main(void)
{
char buf[1024]={0};
int fd =read(STDIN_FILENO,buf,sizeof(buf));//如果換成strlen就錯了,因爲大小爲0
if(fd==-1)
{
printf("error occured %s\n",strerror(errno));
return -1;
}
writeLog(buf,"/home/ken1/workspace/log.txt"); //避免當前目錄問題
close(fd);
printf("\n%s has been writed!\n",buf);
return 0;
}