# C [GstarCAD 2020](Help%20System/GSTARCAD/2020/Index.md) → [Commands](Help%20System/GSTARCAD/2020/Commands/(Commands).md) ## Topics - [C Command](Help%20System/GSTARCAD/2020/Commands/C/C%20Command.md) - [CAL Command](Help%20System/GSTARCAD/2020/Commands/C/CAL%20Command.md) - [CHAMFER Command](Help%20System/GSTARCAD/2020/Commands/C/CHAMFER%20Command.md) - [CHANGE Command](Help%20System/GSTARCAD/2020/Commands/C/CHANGE%20Command.md) - [CHPROP Command](Help%20System/GSTARCAD/2020/Commands/C/CHPROP%20Command.md) - [CHSPACE Command](Help%20System/GSTARCAD/2020/Commands/C/CHSPACE%20Command.md) - [CIRCLE Command](Help%20System/GSTARCAD/2020/Commands/C/CIRCLE%20Command.md) - [CLEANSCREENOFF Command](Help%20System/GSTARCAD/2020/Commands/C/CLEANSCREENOFF%20Command.md) - [CLEANSCREENON Command](Help%20System/GSTARCAD/2020/Commands/C/CLEANSCREENON%20Command.md) - [CLOSE Command](Help%20System/GSTARCAD/2020/Commands/C/CLOSE%20Command.md) - [CLOSEALL Command](Help%20System/GSTARCAD/2020/Commands/C/CLOSEALL%20Command.md) - [CMDBAR Command](Help%20System/GSTARCAD/2020/Commands/C/CMDBAR%20Command.md) - [COLOR Command](Help%20System/GSTARCAD/2020/Commands/C/COLOR%20Command.md) - [COLOR Command Line](Help%20System/GSTARCAD/2020/Commands/C/Color%20Command%20line.md) - [COMMANDLINE Command](Help%20System/GSTARCAD/2020/Commands/C/COMMANDLINE%20Command.md) - [COMMANDLINEHIDE Command](Help%20System/GSTARCAD/2020/Commands/C/COMMANDLINEHIDE%20Command.md) - [CONE Command](Help%20System/GSTARCAD/2020/Commands/C/CONE%20Command.md) - [CONVERT Command](Help%20System/GSTARCAD/2020/Commands/C/CONVERT%20Command.md) - [CONVERTOLDLIGHTS Command](Help%20System/GSTARCAD/2020/Commands/C/CONVERTOLDLIGHTS%20Command.md) - [CONVERTOLDMATERIALS Command](Help%20System/GSTARCAD/2020/Commands/C/CONVERTOLDMATERIALS%20Command.md) - [CONVERTPSTYLES Command](Help%20System/GSTARCAD/2020/Commands/C/CONVERTPSTYLES%20Command.md) - [COPY Command](Help%20System/GSTARCAD/2020/Commands/C/COPY%20Command.md) - [COPYBASE Command](Help%20System/GSTARCAD/2020/Commands/C/COPYBASE%20Command.md) - [COPYCLIP Command](Help%20System/GSTARCAD/2020/Commands/C/COPYCLIP%20Command.md) - [COPYEDATA Command](Help%20System/GSTARCAD/2020/Commands/C/COPYEDATA%20Command.md) - [COPYHIST Command](Help%20System/GSTARCAD/2020/Commands/C/COPYHIST%20Command.md) - [COPYLINK Command](Help%20System/GSTARCAD/2020/Commands/C/COPYLINK%20Command.md) - [COPYTOLAYER Command](Help%20System/GSTARCAD/2020/Commands/C/COPYTOLAYER%20Command.md) - [CUI Command](Help%20System/GSTARCAD/2020/Commands/C/CUI%20Command.md) - [CUIEXPORT Command](Help%20System/GSTARCAD/2020/Commands/C/CUIEXPORT%20Command.md) - [CUIIMPORT Command](Help%20System/GSTARCAD/2020/Commands/C/CUIIMPORT%20Command.md) - [CUILOAD Command](Help%20System/GSTARCAD/2020/Commands/C/CUILOAD%20Command.md) - [CUSTOMIZE Command](Help%20System/GSTARCAD/2020/Commands/C/CUSTOMIZE%20Command.md) - [CUTCLIP Command](Help%20System/GSTARCAD/2020/Commands/C/CUTCLIP%20Command.md) - [CYLINDER Command](Help%20System/GSTARCAD/2020/Commands/C/CYLINDER%20Command.md)