I worked it out, just switch back to stopping at the end: 
#!/usr/bin/perl -w
BEGIN { DB::parse_options("NonStop=1"); }
# script here
$a = [1,2,3];
DB::parse_options("NonStop=0");

[download]
There are probably neater ways though.

Demo: 

$ ./dbg
Default die handler restored.

Loading DB routines from perl5db.pl version 1.07
Editor support available.

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

             NonStop = '1'
Name "main::a" used only once: possible typo at a line 4.
             NonStop = '0'
Debugged program terminated.  Use q to quit or R to restart,
  use O inhibit_exit to avoid stopping after program termination,
  h q, h R or h O to get additional info.  
  DB<1> x $a
0  ARRAY(0x810bab0)
   0  1
   1  2
   2  3
  DB<2>

[download]

In reply to Soln: Automatically "continue" script under the debugger by bsb
in thread Automatically "continue" script under the debugger by bsb

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