Function Entry: VL-FILENAME-BASE

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Function Entry: VL-FILENAME-BASE

Name

vl-filename-base

Class

Visual LISP Pathname Function

Syntax

(vl-filename-base filename)

Arguments and Values

filename: pathname string

Description

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

Return Values

String.

Autodesk documents the returned string as uppercase on Windows, with platform-native case behavior on macOS and Web examples.

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-base (AutoLISP)](https://help.autodesk.com/cloudhelp/2026/CSY/AutoCAD-LT-AutoLISP-Reference/files/GUID-DA20B039-C252-4751-AA2F-EFC314E7D5A0.htm)

Notes

Autodesk documents that the function does not check whether the specified file exists.