IS_WINDOWS_POWERSHELL detects Windows powershell vs. Command Prompt
detects Windows powershell vs. Command Prompt Matlab on Windows Powershell vs Comspec for system() would impact syntax of some system() commands
adapted from: https://stackoverflow.com/a/34480405/7703794
function iswps = is_windows_powershell() iswps = false; if ~ispc return end [ret, ~] = system("dir 2>&1 *`"); iswps = ret == 0; end