C语言批量移动文件及单个文件定位操作指南

#include <dirent.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>

void moveFiles(char *srcDir, char* destDir) {
DIR *dir;
struct dirent *ent;

if ((dir = opendir(srcDir)) != NULL) {
while((ent = readdir(dir)) != NULL) {
// 过滤出txt后缀名的文件
size_t len = strlen(ent->d_name);
if (len > 4 && strcmp(&ent->d_name[len-4], ".txt") == 0) {
char srcFilePath[256];
snprintf(srcFilePath, sizeof(srcFilePath), "%s/%s", srcDir, ent->d_name);

// 创建新路径并移动文件
char dstFilePath[256];
strcpy(dstFilePath, destDir);
strcat(dstFilePath,"/");
strncat(dstFilePath, ent->d_name, sizeof(dstFilePath)-strlen(dstFilePath)-1);

mkdir_p(destPath); /* 使用递归创建多级子目录 */

rename(srcFilePath, dstFilePath);
if(errno){
perror("Failed to rename the file");
}
}
}

closedir(dir);
} else{
perror ("Error opening directory stream ");
}
}

// 辅助函数: 用于递归创建不存在的目录(模拟POSIX系统的mkpath)
int mkdir_p(const char *dir_path) {
const int dir_mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH;
char tmp[PATH_MAX];
char *p = nullptr;

strncpy(tmp, dir_path, PATH_MAX);

for(p=tmp+1; *p!='\0'; p++)
if(*p=='/') {
*p='\0';

if(access(tmp,F_OK))
if(mkdir(tmp,dir_mode)!=0){
return -1;
}

*p='/';
}

if/access(tmp,F_OK)){
if(mkdir(tmp,dir_mode)){
return -1;
}
}
return 0;
}

#include <unistd.h>

bool locateFile(char *filePath) {
if.access(filePath, F_OK) == 0 ) {
printf("%s exists.\n", filePath);
return true;
} else {
printf("%s does not exist.\n", filePath);
return false;
}
}