Can LTSpice used in command line on MacOS?
Try this in your terminal .cir file can also be stimulated. 

&lt;Path\of\the\program&gt;\XVII86.exe -b -Run file_name.asc


LTSpice simulation can be executed by batch process using command prompt

LTSpice Help > Modes of Operation > Command Line Switches

-b will execute .cir or .asc without opening LTSpice