| **Navigation:**  [[introduction.htm|Language Reference]] > 13 - Built-in Functions >====== EXISTS (return file or folder existence) ====== | [[event  return event number .htm|{{btn_prev_n.gif|Previous page}}]][[introduction.htm|{{btn_home_n.gif|Return to chapter overview}}]][[field  return control with focus .htm|{{btn_next_n.gif|Next page}}]] |
|  ||

**EXISTS(** //file// )

{{blk2blue.jpg|blk2blue.jpg}}

| **EXISTS** | Returns TRUE if the //file// is available on disk. |
| //file// | An expression containing the DOS filename. |

The **EXISTS** procedure returns true (1) if the //file// is available on disk. If the //file //is not available, EXISTS returns false (0). You can also use EXISTS to check for the existence of any folder.

| **Return Data Type:** | LONG |

**Example:**

**SomeFile  CSTRING(FILE:MaxFilePath),STATIC**

**Customer  FILE,DRIVER('ASCII','/CLIP = on'),CREATE,NAME(SomeFile)**

**Record     RECORD**

**_Line       STRING(1024)**

**           END**

**          END**

**  CODE**

**SomeFile = 'customer.tps'**

** IF EXISTS(SomeFile) !or EXISTS(NAME(Customer)) is also valid**

**   OPEN(Customer)**

** ELSE**

**   CREATE(Customer) **

** END**

**  **

**  IF EXISTS('C:\Clarion\BIN\') !Is there a Clarion BIN folder**

**   DO InstallCheck**

**  END**

**See Also:**

[[open  open a data structure .htm|OPEN]]

[[status  return file status .htm|STATUS]]

[[create  create an empty data file .htm|CREATE]]

[[name  return file name .htm|NAME]]