用C语言实现文件批量改名，检索，目录

好的，以下是一个简单的 C 语言代码示例，可以实现文件批量改名，检索和目录操作：

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

void rename_files(const char *dir_path, const char *old_name, const char *new_name) {
    DIR *dir;
    struct dirent *entry;

    dir = opendir(dir_path);
    if (dir == NULL) {
        perror("opendir");
        return;
    }

    while ((entry = readdir(dir)) != NULL) {
        if (entry->d_type == DT_REG && strstr(entry->d_name, old_name) != NULL) {
            char old_path[PATH_MAX];
            char new_path[PATH_MAX];
            snprintf(old_path, PATH_MAX, "%s/%s", dir_path, entry->d_name);
            snprintf(new_path, PATH_MAX, "%s/%s", dir_path, new_name);
            if (rename(old_path, new_path) != 0) {
                perror("rename");
            }
        }
    }

    closedir(dir);
}

void search_files(const char *dir_path, const char *search_str) {
    DIR *dir;
    struct dirent *entry;

    dir = opendir(dir_path);
    if (dir == NULL) {
        perror("opendir");
        return;
    }

    while ((entry = readdir(dir)) != NULL) {
        if (entry->d_type == DT_REG && strstr(entry->d_name, search_str) != NULL) {
            printf("%s/%s\n", dir_path, entry->d_name);
        } else if (entry->d_type == DT_DIR && strcmp(entry->d_name, ".") != 0 && strcmp(entry->d_name, "..") != 0) {
            char sub_path[PATH_MAX];
            snprintf(sub_path, PATH_MAX, "%s/%s", dir_path, entry->d_name);
            search_files(sub_path, search_str);
        }
    }

    closedir(dir);
}

int main() {
    const char *dir_path = "/path/to/directory";
    const char *old_name = "old_name";
    const char *new_name = "new_name";
    const char *search_str = "search_string";

    // 批量重命名
    rename_files(dir_path, old_name, new_name);

    // 检索文件
    search_files(dir_path, search_str);

    return 0;
}

请注意，此示例仅供参考，您需要根据自己的具体需求进行修改和扩展。同时，为了确保程序的正确性和安全性，请务必仔细检查您的代码并进行充分测试。