mv-and-check-inode.c

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

unsigned long get_inode(char *name) {
  unsigned long inode;
  struct stat stat_buf;
  char path[255];
  snprintf(path, 255, "./%s", name);
  if (stat(path,  &stat_buf) == 0) {
    inode = stat_buf.st_ino;
    return inode;
  } else {
    perror("get_inode");
  }
}

int do_move (char *src, unsigned long n) {
  char cmd[255];
  char dest[255];
  unsigned long inode1;
  unsigned long inode2;
  
  inode1 = get_inode(src);
  snprintf(dest, 255, "%sa", src);
  snprintf(cmd, 255, "%s %s %s", "mv", src, dest);
  
  system(cmd);
  inode2 = get_inode(dest);

  printf("%lu: %s (%lu) -> %s (%lu)\n", n, src, inode1, dest, inode2);
  return 0;
}

int main(int argc, char**argv) {
  char *path = "./";
  char *s;
  DIR *dir;
  struct dirent *dent;
  unsigned long n;
  if (argc > 1) {
    path = argv[1];
  }
  n = 1;
  dir = opendir(path);
  while ((dent = readdir(dir)) != NULL) {
    s = dent->d_name;
    if (strcmp(".", s) == 0 || strcmp("..", s) == 0) {
      continue;
    }
    do_move (s, n);
    n++;
  }
  closedir(dir);
  return 0;
}