## General

#### Are MAPDL macro filenames case sensitive?

• FAQ
Participant

The PC does not uniquely support both upper and lower case file names; for example, you cannot have files named opto1.mac and OPTO1.MAC in the same directory. However, HP Unix does support upper and lower case filenames. In fact, you could also have file names such as opto1.maC, opto1.mAC, opto1.MAC, etc. in the same directory. If you invoke a macro on HP Unix via *USE, you must match the macro name exactly in terms of case. NOTE: If you invoke a macro on HP Unix via the unknown command macro logic, MAPDL will only access either the all lower case or all upper case file (opto1.mac or OPTO1.MAC). There is a detailed discussion of the unknown command macro behavior under the Notes section of the *USE command section of the Mechanical APDL Command Reference document. For other MAPDL commands that use filenames, you must match the case of the filename if you type in the command on HP Unix. If you select a filename through the GUI, then the case combination that you pick will be used.