/net/tools/perl/perl-5.8.8/bin/perl   (wrapper)
   /net/tools/perl/perl-5.8.8/lib/...

   /net/tools/perl/perl-5.8.8/sparc/bin/perl
   /net/tools/perl/perl-5.8.8/i386/bin/perl
   /net/tools/perl/perl-5.8.8/linux/bin/perl

##</code><code>##

   #!/bin/sh --
   # -*- perl -*-
      eval 'exec /net/tools/perl/perl-5.8.8/bin/perl -xw $0 ${1+"$@"}'
         if 0;

##</code><code>##

   #!/bin/sh -- # -*- perl -*-
      eval 'exec /net/tools/perl/perl-5.8.8/bin/perl -w $0 ${1+"$@"}'
         if 0;

##</code><code>##

   % myscript.pl

##</code><code>##

   % /net/tools/perl/perl-5.8.8/linux/bin/perl -d myscript.pl

##</code><code>##

% cat test-debug.pl
#!/bin/sh
#!-*- perl -*-
   eval 'exec /net/tools/perl/perl-5.8.8/bin/perl -wx $0 ${1+"$@"}'
     if 0;

print "$^X\n";
print "HI THERE\n";
exit;

% /net/tools/perl/perl-5.8.8/bin/perl -d test-debug.pl

Loading DB routines from perl5db.pl version 1.28
Editor support available.

Enter h or `h h' for help, or `man perldebug' for more help.

-d: bad option(s)