在linux下如何实现文件夹的遍历?
需要什么函数呢?
问题点数:50、回复次数:6Top
1 楼xsq618()回复于 2005-12-21 16:35:03 得分 9
试试下面的代码,我是在redhat上编译运行的。
//g++ -o read_dir read_dir.cpp
//用于列出参数目录下的文件
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <dirent.h>
int main( int argc, char * argv[])
{
DIR *dp;
struct dirent *dirp;
if( argc != 2)
{
printf("not enough arguments! exit!\n");
exit(0);
}
if( (dp = opendir(argv[1])) == NULL)
{
printf("can't open %s!\n",argv[1]);
exit(0);
}
while( (dirp = readdir(dp)) != NULL)
printf("%s\n",dirp->d_name);
closedir(dp);
}
Top
2 楼sinall()回复于 2005-12-21 17:21:05 得分 9
呵呵《Unix环境高级编程》第一个例子。
一下仅实现了列表一个路径下的文件夹,没有遍历部分。
#include <sys/types.h>
#include <dirent.h>
#include <stdio.h>
#include <sys/stat.h>
//#define __ourhdr_h
//#include "ourhdr.h"
int main(int argc,char* argv[])
{
DIR *dp;
struct dirent * dirp;
if (argc!=2)
{
// err_quit("a single argument (the directory name) is required");
printf("a single argument is required");
return 0;
}
if ((dp=opendir(argv[1]))==NULL)
{
// err_sys("cant open %s",argv[1]);
printf("cant open %s",argv[1]);
return 0;
}
while((dirp=readdir(dp))!=NULL)
{
struct stat buf;
if (lstat(dirp->d_name, &buf) < 0)
{
printf("lstat error");
}
if (S_ISDIR(buf.st_mode))
{
printf("%s\n",dirp->d_name);
}
}
closedir(dp);
// exit(0);
}Top
3 楼qfeng_zhao(鱼儿鱼儿满天飞)回复于 2005-12-21 18:01:38 得分 30
#include <stdio.h>
#include <dirent.h>
#include <sys/types.h>
#include <sys/stat.h>
void dir_scan(char *path, char *file);
int count = 0;
int main(int argc, char *argv[])
{
struct stat s;
if(argc != 2){
printf("one direction requried\n");
exit(1);
}
if(lstat(argv[1], &s) < 0){
printf("lstat error\n");
exit(2);
}
if(!S_ISDIR(s.st_mode)){
printf("%s is not a direction name\n", argv[1]);
exit(3);
}
dir_scan("", argv[1]);
printf("total: %d files\n", count);
exit(0);
}
void dir_scan(char *path, char *file)
{
struct stat s;
DIR *dir;
struct dirent *dt;
char dirname[50];
memset(dirname, 0, 50*sizeof(char));
strcpy(dirname, path);
if(lstat(file, &s) < 0){
printf("lstat error\n");
}
if(S_ISDIR(s.st_mode)){
strcpy(dirname+strlen(dirname), file);
strcpy(dirname+strlen(dirname), "/");
if((dir = opendir(file)) == NULL){
printf("opendir %s/%s error\n");
exit(4);
}
if(chdir(file) < 0) {
printf("chdir error\n");
exit(5);
}
while((dt = readdir(dir)) != NULL){
if(dt->d_name[0] == '.'){
continue;
}
dir_scan(dirname, dt->d_name);
}
if(chdir("..") < 0){
printf("chdir error\n");
exit(6);
}
}else{
printf("%s%s\n", dirname, file);
count++;
}
}
前些天学习时刚写的代码...Top
4 楼tb01412(tb)回复于 2005-12-21 18:19:05 得分 2
呵,用递归不就行了吗?Top
5 楼khyang(天佑)回复于 2005-12-21 21:08:40 得分 0
呵呵..对头Top
6 楼fxismonk(Monk)回复于 2006-03-30 11:01:37 得分 0
谢谢qfeng_zhao(鱼儿鱼儿满天飞)的代码:)
不过里面opendir之后没有closedir,提醒一下后来人:)Top




