$ uname -a Darwin ganymede.local 16.6.0 Darwin Kernel Version 16.6.0: Fri Apr 14 16:21:16 PDT 2017; root:xnu-3789.60.24~6/RELEASE_X86_64 x86_64 i386 MacPro5,1 Darwin $ perl -v | head -2 | tail -1 This is perl 5, version 28, subversion 0 (v5.28.0) built for darwin-thread-multi-2level $ alias perle alias perle='perl -Mstrict -Mwarnings -Mautodie=:all -E' $ ls not_a_file ls: cannot access 'not_a_file': No such file or directory