Error when trying to run command ncpdq

Hello,

I am trying to reorder lat/lon dimensions in an nc file from (lon, lat, time) to (lat, lon, time). I installed your package but I am still having trouble running the ncpdq command. I get the following error: Error: unexpected symbol in "ncpdq -a lat" when running this code ncpdq -a lat,lon,time spei01.nc spei01.nc.

Apologies if this isn't directly related but I couldn't find anything online and any help would be greatly appreciated.

Thanks a lot