C programs under Linux, traversing folders and counting the percentages of each type of file

Recursively traverse all files and folders in a directory, counting the percentages of each type of file

Program code a.cpp (Compile command: g++ a.cpp-o a)

#include  <stdio.h> #include  <sys/stat.h> #include  <sys/types.h> #include   <unistd.h> #include  <stdlib.h> #include  <dirent.h> #include  <string.h> struct filestat{    char m_name[100]; //File type name     int  m_count;      //file count (calculated in the main function)     float m_ percent;  //percentage in all files (calculated in main function)     filestat (const char* name)     {        strcpy (This -> m_Name,  name);        this -> m_count = 0;         this -> m_Percent = 0;     }};struct filestat* fs[8] = {    new filestat (" Normal file (REGULAR)                "),     new filestat (" Directory files (directory)              "),     new filestat ("character special file (character_special)"),     new filestat ("Block special file (BLOCK_ Special)        "),     new filestat (" Pipe or FIFO (FIFO)                  "),     new filestat ("Symbolic link (symbolic_link)         "),   &NBSP;&NBSP;NEW&NBSP;FILESTAT (socket socket)                    "),     new filestat (" Other unknown Types (UNKNOWN)             ")};struct stat buf;//Traverse folder Void checkdir (char*  dir, int depth) {&NBSP;&NBsp;  dir *dp;    struct dirent *entry;     struct stat statbuf;    if  (Dp = opendir (dir))  == NULL )     {        fprintf (stderr,  "Cannot  Open directory: %s\n ");        return;     }    chdir (dir);    while  ((Entry = readdir (DP))  != null)     {        lstat (entry - &GT;&NBSP;D_NAME,&NBSP;&AMP;STATBUF);         //Traversal to Folder          if  (S_isdir (statbuf.st_mode))          {            if (strcmp (".",  entry  -> d_name)   == 0 | | &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;STRCMP ("..",  entry -> d_name)  == 0)              {                 continue;            }             //printf ("%d|%*sdir:%s/\n",  depth, depth,   " ",  entry -> d_name);             fs[1] -> m_Count++;             checkdir (entry -> d_name, depth + 4);         }        else //traversal to file         &nbsp {            //printf ("%d|%*sFile:%s | " , depth, depth,  " ",  entry -> d_name);                     if  (Lstat (entry &NBSP;-&GT;&NBSP;D_NAME,&NBSP;&AMP;BUF)  < 0)              {                 printf ("Lstat error");                 continue;             }            if  (S_isreg (Buf.st_mode))             {                 //printf ("Normal file  regular\n");                 fs[0] -> m_Count++;             }             else if  (S_ISCHR (buf.st_mode))              {                 //printf ("character special File  character special\n");                 fs[2] -> m_Count++;             }             else if  (S_ISBLK (buf.st_mode))              {                //printf ("Block special files  BLOCK  Special\n ");                 fs [3] -> m_count++;            }             else if  (S_isfifo (Buf.st_mode))             {                 //printf ("Pipe or fifo fifo\n");                 fs[4] -> m_Count++;             }             else if  (S_islnk (buf.st_mode))              {                 //printf ("Symbolic Connection  symbolic link\n");                 fs[5] -> m_Count++;             }             else if  (S_issock (buf.st_mode))              {                // printf ("Socket  socket\n");                 fs[6] -> m_Count++;             }            else             {                 //printf ("Unknown type  unknown mode\n");                 fs[7] -> m_Count++;             }        }     }    chdir ("..");     closedir (DP);} Int main (int argc, char *argv[]) {    if  (ARGC&NBSP;!=&NBSP;2)     {        printf ("Input Error: Argv[1 ] must be a file name!\n ");         exit (1);     }        printf ("Check Folder: %s\n" ,  argv[1]);     checkdir (argv[1],&NBSP;0);     //calculates M_count and m_percent    int i, total;     for (i = 0; i < 8; i++)     {         total += fs[i] -> m_count;    }     for (i = 0; i < 8; i++)     {         fs[i] -> m_percent = 1.0 * fs[i]  -> m_count / total;    }    //Output Calculation results      printf ("                     STAT                     \n ");     printf (" =================== =========================\n ");     for (i = 0; i < 8; i++)      {        printf ("%s | %7.3f%%\n",  fs[i] - > m_name, 100.0 * fs[i] -> m_count / total);     }    printf ("done.\n");     return 0;}

Run results

END

C programs under Linux, traversing folders and counting the percentages of each type of file