Linux readdir如何处理大量文件

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

int main() {
    DIR *dir;
    struct dirent *entry;

    dir = opendir("path/to/directory");
    if (dir == NULL) {
        perror("opendir");
        return 1;
    }

    while ((entry = readdir(dir)) != NULL) {
        printf("%s\n", entry->d_name);
    }

    closedir(dir);
    return 0;
}
</stdio.h></dirent.h>

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

int main() {
    DIR *dir;
    struct dirent *entry, *result;
    char name[256];

    dir = opendir("path/to/directory");
    if (dir == NULL) {
        perror("opendir");
        return 1;
    }

    while (readdir_r(dir, &entry, &result) == 0) {
        if (result == NULL) {
            break;
        }
        printf("%s\n", result->d_name);
    }

    closedir(dir);
    return 0;
}
</stdlib.h></stdio.h></dirent.h>

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

int main() {
    DIR *dir;
    struct dirent *entry;

    dir = opendir("path/to/directory");
    if (dir == NULL) {
        perror("opendir");
        return 1;
    }

    while ((entry = readdir(dir)) != NULL) {
        if (entry->d_type == DT_REG) { // Only print regular files
            printf("%s\n", entry->d_name);
        }
    }

    closedir(dir);
    return 0;
}
</stdio.h></dirent.h>

#include <glob.h>
#include <stdio.h>

int main() {
    glob_t globbuf;
    int ret;

    ret = glob("path/to/directory/*", GLOB_TILDE, NULL, &globbuf);
    if (ret != 0) {
        fprintf(stderr, "glob error: %d\n", ret);
        return 1;
    }

    for (size_t i = 0; i 
<ol start="5"><li>采用find命令：如果是在shell环境中作业，可以利用find命令来处理众多文件。例如，可以通过find命令寻找特定类型的文件或按照修改时间排序等。</li>
</ol>find path/to/directory -type f -name "*.txt" -exec ls -l {} \;

<p>总而言之，在应对海量文件时，上述方法均可增强readdir的表现力与效率。具体选用哪一种方式，要视具体情况而定。</p>

                        </stdio.h></glob.h>