diff --git a/cat.o b/cat.o
new file mode 100644
index 0000000..036f2ce
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diff --git a/cd.o b/cd.o
new file mode 100644
index 0000000..66108a8
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diff --git a/clear.o b/clear.o
new file mode 100644
index 0000000..2e475c7
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diff --git a/diff.o b/diff.o
new file mode 100644
index 0000000..c9cc886
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diff --git a/ls.o b/ls.o
new file mode 100644
index 0000000..2848ae8
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diff --git a/main.c b/main.c
index 827e52e..efde73e 100644
--- a/main.c
+++ b/main.c
@@ -18,12 +18,12 @@ DirectoryTree dTree;
 
 void initialize_directory_tree(DirectoryTree* dTree) {
     TreeNode* root = malloc(sizeof(TreeNode)); // 메모리 할당
-    strcpy(root->name, "/");
+    strcpy(root->name, "");
     root->type = 'd';
     root->left = NULL;
     root->right = NULL;
     root->parent = NULL;
-    strncpy(dTree->root->name, "/", MAX_NAME_LENGTH);
+    //strncpy(dTree->root->name, "/", MAX_NAME_LENGTH);
     dTree->root->type = 'd';
     dTree->root->mode = 755;
     dTree->root->size = 4096;
@@ -94,7 +94,7 @@ int main() {
                 save_tree_to_file(&dTree, SAVE_FILE);
             } else {
                 printf("cat: missing argument\n");
-                printf("사용법: cat <filename>\n")
+                printf("사용법: cat <filename>\n");
             }
         } 
         else if (strcmp(cmd, "cd") == 0) {
@@ -178,4 +178,4 @@ int main() {
             printf("Invalid command: %s\n", cmd);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/main.o b/main.o
new file mode 100644
index 0000000..0deb994
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diff --git a/program b/program
new file mode 100755
index 0000000..62e8bf0
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diff --git a/pwd.o b/pwd.o
new file mode 100644
index 0000000..4fddc92
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diff --git a/test1 b/test1
new file mode 100644
index 0000000..e69de29
diff --git a/touch.o b/touch.o
new file mode 100644
index 0000000..2fa81b5
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diff --git a/tree_io.c b/tree_io.c
index 619a3e9..4480756 100644
--- a/tree_io.c
+++ b/tree_io.c
@@ -51,7 +51,7 @@ void load_tree_from_file(DirectoryTree* dTree, const char* filename) {
         // ������ �������� ������ �� Ʈ�� �ʱ�ȭ
         perror("fopen"); // ������ �κ�: ������ ���� ���� ���� �޽��� ���
         TreeNode* root = malloc(sizeof(TreeNode)); //�� Ʈ�� �ʱ�ȭ
-        strcpy(root->name, "/");
+        strcpy(root->name, "");
         root->type = 'd';
         root->left = NULL;
         root->right = NULL;
@@ -62,7 +62,10 @@ void load_tree_from_file(DirectoryTree* dTree, const char* filename) {
         return;
     }
     dTree->root = load_tree_helper(file, 0);
+    if (dTree->root && strcmp(dTree->root->name, "/") == 0) {
+        strcpy(dTree->root->name, "");
+    }
     dTree->current = dTree->root;
     strcpy(dTree->current_path, "Team4:");
     fclose(file);
-}
\ No newline at end of file
+}
diff --git a/tree_io.o b/tree_io.o
new file mode 100644
index 0000000..ebfb0e0
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diff --git a/tree_state.txt b/tree_state.txt
new file mode 100644
index 0000000..8bcb53c
--- /dev/null
+++ b/tree_state.txt
@@ -0,0 +1,2 @@
+d /
+  f test1
diff --git a/whereis.c b/whereis.c
index 10788b3..860486b 100644
--- a/whereis.c
+++ b/whereis.c
@@ -6,7 +6,16 @@ void whereis_helper(TreeNode *node, const char *target, char *path) {
     if (node == NULL) return;
 
     char new_path[1024];
-    snprintf(new_path, sizeof(new_path), "%s/%s", path, node->name);
+    if (strcmp(path, "") == 0) {
+        // path가 빈 문자열이면 루트 기준 시작
+        snprintf(new_path, sizeof(new_path), "/%s", node->name);
+    } else if (path[strlen(path) - 1] == '/') {
+        // path가 /로 끝나면 슬래시 하나만 유지
+        snprintf(new_path, sizeof(new_path), "%s%s", path, node->name);
+    } else {
+        // 평범한 연결
+        snprintf(new_path, sizeof(new_path), "%s/%s", path, node->name);
+    }
 
     if (strcmp(node->name, target) == 0) {
         printf("Found: %s\n", new_path);
@@ -18,4 +27,4 @@ void whereis_helper(TreeNode *node, const char *target, char *path) {
 
 void whereis(DirectoryTree *dTree, const char *target) {
     whereis_helper(dTree->root, target, "");
-}
\ No newline at end of file
+}
diff --git a/whereis.o b/whereis.o
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index 0000000..240a24f
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