# GCADPREFIX System Variable [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [System Variables](Help%20System/GSTARCAD/2021/System%20Variables/(System%20Variables).md) → [G](Help%20System/GSTARCAD/2021/System%20Variables/G/(G).md) **Function Description:** The GCADPREFIX system variable is used to save directory path(if exists) specified by GCAD environment variable and attached with path separator if necessary. (Read only) | | | | --- | --- | | Type | Strings | | Saved in | Not saved | | Initial value | Unknown | --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/G/GCADPREFIX%20System%20Variable--1c36e25db366.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/G/GCADPREFIX%20System%20Variable--1c36e25db366.md) · [GstarCAD 2018](../../../2018/System%20Variables/G/GCADPREFIX%20System%20Variable--1c36e25db366.md) · [GstarCAD 2019](../../../2019/System%20Variables/G/GCADPREFIX%20System%20Variable--1c36e25db366.md) · [GstarCAD 2020](../../../2020/System%20Variables/G/GCADPREFIX%20System%20Variable--1c36e25db366.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/G/GCADPREFIX%20System%20Variable--1c36e25db366.md)