linux c语言unlink删除文件

#include <stdio.h>
#include <unistd.h>

int main() {
    const char *filename = "example.txt";
    
    if (unlink(filename) == 0) {
        printf("File %s deleted successfully.\n", filename);
    } else {
        perror("Error deleting file");
    }
    
    return 0;
}

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

int main() {
    const char *filename = "example.txt";
    
    // 检查文件是否存在
    struct stat buffer;
    if (stat(filename, &buffer) == 0) {
        // 检查权限
        if (access(filename, W_OK) != -1) {
            if (unlink(filename) == 0) {
                printf("File %s deleted successfully.\n", filename);
            } else {
                perror("Error deleting file");
            }
        } else {
            perror("Permission denied");
        }
    } else {
        perror("File not found");
    }
    
    return 0;
}