% process_mdout: Permission denied

Problem Description: user copied process_mdout.perl from a workstation to a local macintosh with Mac OS X, user encountered:

% process_mdout.perl model1min2.out
% process_mdout: Permission denied.

This can be solved either by % chmod +x process_mdout.perl and then run the command like % ./process_mdout.perl model1min2.out or just do % perl process_mdout.perl model1min2.out