stdin_stdout_stderr_demo.c

Linux 的shell编程小程序

#include "stdio.h"
#define MAX_BUF_SIZE  200
int main()
{
char buf[MAX_BUF_SIZE];
fgets(buf,MAX_BUF_SIZE,stdin);
fprintf(stdout,"%s : %s\n","output to stdout",buf);
fprintf(stderr,"%s : %s\n","output to stderr",buf);
}