linux 文件操作系统设计

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mb5ff982de32716 2013-06-15 14:44:00

文章标签 #include 打开文件文件创建 #define 删除目录 文章分类 代码人生

linux操作系统文件管理系统设计

版本1.0

#include<fcntl.h> 
#include<sys/types.h> 
#include<sys/stat.h> 
#include<unistd.h> 
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<dirent.h> 

#define LENGTH 2000 
char str[100];
char buf[100];
void z_read(char* s); 
void z_write(char* s); 
void z_welcome();
void z_delete_file(char* s);
void z_delete_dir(char* s);
void z_create_file(char* s);
void z_create_dir(char *s);
void scan_dir(char* dir,int depth);

int main(){
  int in;
  do{
    z_welcome();
    scanf("%d",&in);
    switch(in){
      case 0: 
        exit(0);
      break;
      case 1: 
        printf("输入要创建的文件夹：");
        scanf("%s",&str);
        z_create_dir(str);
      break;
      case 2: 
        printf("输入要创建的文件：");
        scanf("%s",&str);
        z_create_file(str);
      break;
      case 3: 
        printf("输入要删除的文件夹：");
        scanf("%s",&str);
        z_delete_dir(str);
      break;
      case 4:
        printf("输入要删除的文件：");
        scanf("%s",&str);
        z_delete_file(str);
      break;
      case 5:
        printf("输入要写入文件的路径：");
        scanf("%s",&str);
        z_write(str);
      break;
      case 6: 
        printf("输入要读取文件的路径：");
        scanf("%s",&str);
        z_read(str);
      break;
      case 7: 
        printf("输入要查找显示的路径：");
        scanf("%s",&str);
        scan_dir(str,0);
      break;  
      case 8:
        printf("输入要打开的路径：");
        scanf("%s",&str);
        chdir(str);       
      break;  
      case 9:

        printf("%s\n",getcwd(buf,sizeof(buf)));
    }
  }while(1);
  return 0;
}
void z_welcome(){
  printf("|-->        welcome to zxl         <--|\n");
  printf("|-------------------------------------|\n");
  printf("|-->input 0 exit                    --|\n");
  printf("|-->input 1 to create work path     --|\n");
  printf("|-->input 2 to create a new folder  --|\n");
  printf("|-->input 3 to delete work path     --|\n");
  printf("|-->input 4 to delete a new folder  --|\n");
  printf("|-->input 5 to write folder         --|\n");
  printf("|-->input 6 to read folder          --|\n");
  printf("|-->input 7 to search path          --|\n");
  printf("|-->input 8 to open path            --|\n");
  printf("|-->input 9 to display into path    --|\n");
  printf("|-------------------------------------|\n");
}
void z_create_dir(char* s){
  if(mkdir(s,0755)!=-1){ 
    puts("目录创建成功");
  }else
    return 1;
}

void z_create_file(char* s){
  if(creat(s,0664)!=-1){ 
    puts("文件创建成功");
    //sleep(2);
  }
  else
    return 1;
}

void z_delete_dir(char* s){
  if(rmdir(s) !=-1){ 
    puts("删除目录成功");
  }
  else
    return 1;
}


void z_delete_file(char* s){
  if(unlink(s)!=-1){  
    puts("删除文件成功");
    //sleep(2);
  }
  else
    return 1;
}

void z_read(char* s){
  char c[LENGTH]; 
  int f,i,j=0; 
  f=open(s,O_RDONLY,LENGTH); 
  if(f!=-1){ 
    i=read(f,c,LENGTH);
    if(i>0){  
      for(;i>0;i--)
        putchar(c[j++]);
    }else
      perror("读取");  
  }else
    perror("打开文件"); 
}

void z_write(char* s){
  char c[LENGTH]; 
  int f,i;
  puts("输入要保存的文件信息：");
  if((i=read(0,c,LENGTH))<1){ 
    perror("读取失败");
    return 1 ;
  }
  f=open(s,O_RDWR | O_CREAT |O_APPEND ,0664);
  if(f!=-1){
    if(write(f,c,i)!=i) 
      perror("写入失败");
    puts("保存成功");
    close(f);  
  }else
    perror("打开文件");
}

void scan_dir(char* dir,int depth) { 

DIR  *dp; 
struct dirent *entry;
struct stat statbuf; 
  if((dp=opendir(dir))==NULL){  
    puts("无法打开该目录");
    return;
  }
  chdir(dir);  
  while((entry = readdir(dp))!=NULL){ 
    lstat(entry->d_name,&statbuf);
    if(S_IFDIR & statbuf.st_mode){
      if(strcmp(".",entry->d_name)==0 || strcmp("..",entry->d_name)==0)
        continue; 
      printf("%*s%s/\n",depth,"",entry->d_name);
      scan_dir(entry->d_name,depth+4);
    }else
      printf("%*s%s\n",depth,"",entry->d_name); 
  }
  chdir(".."); 
  closedir(dp); 
}

版本2.0

#include<fcntl.h> 
#include<sys/types.h> 
#include<sys/stat.h> 
#include<unistd.h> 
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<dirent.h>


#define LENGTH 2000 
char str[100];
char buf[100];
char zz[]="find     -name     ";
char z_file[50];
void z_read(char* s); 
void z_write(char* s); 
void z_welcome();
void z_delete_file(char* s);
void z_delete_dir(char* s);
void z_create_file(char* s);
void z_create_dir(char *s);
void scan_dir(char* dir,int depth);
void str_ins(char source[],int index,char dest[]);

int main(){
  int in;
  do{
    z_welcome();
    scanf("%d",&in);
    switch(in){
      case 0: 
        exit(0);
      break;
      case 1: 
        printf("输入要创建的文件夹：");
        scanf("%s",&str);
        z_create_dir(str);
      break;
      case 2: 
        printf("输入要创建的文件：");
        scanf("%s",&str);
        z_create_file(str);
      break;
      case 3: 
        printf("输入要删除的文件夹：");
        scanf("%s",&str);
        z_delete_dir(str);
      break;
      case 4:
        printf("输入要删除的文件：");
        scanf("%s",&str);
        z_delete_file(str);
      break;
      case 5:
        printf("输入要写入文件的路径：");
        scanf("%s",&str);
        z_write(str);
      break;
      case 6: 
        printf("输入要读取文件的路径：");
        scanf("%s",&str);
        z_read(str);
      break;
      case 7: 
        printf("输入要查找显示的路径：");
        scanf("%s",&str);
        scan_dir(str,0);
      break;  
      case 8:
        printf("输入一个大致路径：");
        scanf("%s",&str);
        printf("输入查找的文件名：");
        scanf("%s",&z_file);
        str_ins(zz,5,str);
        str_ins(zz,strlen(zz),z_file);
        system(zz);
        printf("\n");
      break;  
      case 9:
        printf("输入要打开的路径：");
        scanf("%s",&str);
        chdir(str);
        break; 
      break;
      case 10:
        printf("当前路径：%s\n",getcwd(buf,sizeof(buf)));
        break;
    }
  }while(1);
  return 0;
}

void str_ins(char source[],int index,char dest[]){
  int i,j,k;
  j=0;while(dest[j])j++;j--;
  k=0;while(source[k])k++;k--;
  for(i=k-index+1;i>=0;i--) source[index+j+i]=source[index+i];
  for(i=0;i<=j;i++) source[i+index]=dest[i];
}


void z_welcome(){
  printf("|-->        welcome to zxl         <--|\n");
  printf("|-------------------------------------|\n");
  printf("|-->input 0 exit                    --|\n");
  printf("|-->input 1 to create work path     --|\n");
  printf("|-->input 2 to create a new folder  --|\n");
  printf("|-->input 3 to delete work path     --|\n");
  printf("|-->input 4 to delete a new folder  --|\n");
  printf("|-->input 5 to write folder         --|\n");
  printf("|-->input 6 to read folder          --|\n");
  printf("|-->input 7 to search path          --|\n");
  printf("|-->input 8 to search folder        --|\n");
  printf("|-->input 9 to open path            --|\n");
  printf("|-->input 10 to display into path   --|\n");
  printf("|-------------------------------------|\n");
}
void z_create_dir(char* s){
  if(mkdir(s,0755)!=-1){ 
    puts("目录创建成功");
  }else
    return 1;
}

void z_create_file(char* s){
  if(creat(s,0664)!=-1){ 
    puts("文件创建成功");
    //sleep(2);
  }
  else
    return 1;
}

void z_delete_dir(char* s){
  if(rmdir(s) !=-1){ 
    puts("删除目录成功");
  }
  else
    return 1;
}


void z_delete_file(char* s){
  if(unlink(s)!=-1){  
    puts("删除文件成功");
    //sleep(2);
  }
  else
    return 1;
}

void z_read(char* s){
  char c[LENGTH]; 
  int f,i,j=0; 
  f=open(s,O_RDONLY,LENGTH); 
  if(f!=-1){ 
    i=read(f,c,LENGTH);
    if(i>0){  
      for(;i>0;i--)
        putchar(c[j++]);
    }else
      perror("读取");  
  }else
    perror("打开文件"); 
}

void z_write(char* s){
  char c[LENGTH]; 
  int f,i;
  puts("输入要保存的文件信息：");
  if((i=read(0,c,LENGTH))<1){ 
    perror("读取失败");
    return 1 ;
  }
  f=open(s,O_RDWR | O_CREAT |O_APPEND ,0664);
  if(f!=-1){
    if(write(f,c,i)!=i) 
      perror("写入失败");
    puts("保存成功");
    close(f);  
  }else
    perror("打开文件");
}

void scan_dir(char* dir,int depth) { 

DIR  *dp; 
struct dirent *entry;
struct stat statbuf; 
  if((dp=opendir(dir))==NULL){  
    puts("无法打开该目录");
    return;
  }
  chdir(dir);  
  while((entry = readdir(dp))!=NULL){ 
    lstat(entry->d_name,&statbuf);
    if(S_IFDIR & statbuf.st_mode){
      if(strcmp(".",entry->d_name)==0 || strcmp("..",entry->d_name)==0)
        continue; 
      printf("%*s%s/\n",depth,"",entry->d_name);
      scan_dir(entry->d_name,depth+4);
    }else
      printf("%*s%s\n",depth,"",entry->d_name); 
  }
  chdir(".."); 
  closedir(dp); 
}