Function Entry: VL-FILENAME-DIRECTORY

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Function Entry: VL-FILENAME-DIRECTORY

Name

vl-filename-directory

Class

Visual LISP Pathname Function

Syntax

(vl-filename-directory filename)

Arguments and Values

filename: pathname string

Description

Returns the directory path of a file after stripping the name and extension.

Return Values

String.

Autodesk documents that the empty string is returned when no directory component is present.

Side Effects

None.

Availability

AutoCAD 2026: documented (per Autodesk reference page).
BricsCAD V26: presumed compatible (no contradicting page found).
Status: AutoCAD documented; BricsCAD presumed-both pending Phase 4 verification.

Source Notes

[vl-filename-directory (AutoLISP)](https://help.autodesk.com/cloudhelp/2026/KOR/AutoCAD-LT-AutoLISP-Reference/files/GUID-AAB7ED2B-C119-4B30-A831-71A4D02757B0.htm)

Notes

Autodesk documents that slashes and backslashes are both accepted as directory delimiters.
Autodesk documents that the function does not check whether the specified file exists.