Global symbol "$allmac" requires explicit package name at ./filtermac.pl line 5.
Global symbol "$allmac" requires explicit package name at ./filtermac.pl line 6.
Global symbol "$allmac" requires explicit package name at ./filtermac.pl line 7.
Global symbol "$id" requires explicit package name at ./filtermac.pl line 11.
Global symbol "$id" requires explicit package name at ./filtermac.pl line 12.
Execution of ./filtermac.pl aborted due to compilation errors.