diff --git a/src/const.h b/src/const.h
index ef4cf89..0a5b522 100644
--- a/src/const.h
+++ b/src/const.h
@@ -1,8 +1,8 @@
 /** @file */
 #define BUFSIZE 1024
 #define MAX_BLOCS 30
-#define MAX_BYTES_PER_BLOC 1024
-#define MAX_INODE 10
+#define MAX_BYTES_PER_BLOC 512
+#define MAX_INODE 20
 #define MAX_INODE_NAME 28 // 27 caractères + '\0' + numero de l'inode ref
 
 #define TYPE_NULL 0
diff --git a/src/disk.c b/src/disk.c
index dc35d31..d5448df 100644
--- a/src/disk.c
+++ b/src/disk.c
@@ -194,6 +194,37 @@ void write_in_file(disk *d, int file_index, char *data /*, char mode*/) {
   strncpy(&d->blocs[bloc_index_to_overwrite].datas[0], data, strlen(data));
 }
 
+int get_number_of_free_blocs(disk *d) {
+  int out = 0;
+  for (int i = 0; i < MAX_BLOCS; i++) {
+    if (d->owned_blocs[i] == 0) {
+      out++;
+    }
+  }
+  return out;
+}
+
+int get_number_of_inode_left(disk *d) {
+  int out = 0;
+  for (int i = 0; i < MAX_INODE; i++) {
+    if (d->inodes[i].filetype == TYPE_NULL) {
+      out++;
+    }
+  }
+  return out;
+}
+
+int do_df(disk *d) {
+  int free_blocs = get_number_of_free_blocs(d);
+  printf("  Free blocs : %i\n", free_blocs);
+  printf("  Inode left : %i\n", get_number_of_inode_left(d));
+  // N'est pas la taille réelle à proprement parlé mais plutot l'espace
+  // possiblement occupable par le reste d'inode sur le disque
+  printf("  Space left : %.2fKb\n",
+         (float)(free_blocs * MAX_BYTES_PER_BLOC) / 1000);
+  return 0;
+}
+
 int find_dir_inode_by_name(char *name, int dir_index, disk *d) {
   if (dir_index < 0 || dir_index >= MAX_INODE)
     return -1;
diff --git a/src/disk.h b/src/disk.h
index 74a4ee4..48a7910 100644
--- a/src/disk.h
+++ b/src/disk.h
@@ -17,4 +17,5 @@ disk open_disk(char* filename);
 int do_ls(disk *d, char* path);
 int do_touch(disk *d, char *filepath);
 int do_mkdir(disk* d, char *dirpath);
+int do_df(disk *d);
 int find_dir_inode_by_name(char *name, int dir_index, disk *d);
\ No newline at end of file
diff --git a/src/exec.c b/src/exec.c
index e53930e..cec72da 100644
--- a/src/exec.c
+++ b/src/exec.c
@@ -38,6 +38,8 @@ int child_process_job(disk *d, char **args) {
     do_mkdir(d, args[1]);
   } else if (strcmp("touch", args[0]) == 0) {
     do_touch(d, args[1]);
+  } else if (strcmp("df", args[0]) == 0) {
+    do_df(d);
   } else {
     dprintf(STDERR_FILENO, "%s: no such command\n", args[0]);
   }
@@ -49,7 +51,7 @@ int execute_cmd(disk *d, char **args) {
     return do_cd(d, args[1]);
   }
 
-  int pid = 0;
+  int pid = fork();
 
   if (pid == 1) {
     return -1;