打印结果

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

int main(void)
{
    char filename[] = "/var/log/kern.log";
    FILE* f = fopen(filename, "r");
    char c;
    while((c = fgetc(f)) != EOF){
        putchar(c);    
    }
    fclose(f);
}