On most operating systems, $^X contains the full path to the perl executable used to run your script, so you should not need to involve env.

Your approach is the correct approach to restart your Perl script with added parameters, but you need to add one more parameter that indicates that your Perl script has restarted itself already:

BEGIN {
    if( ! $ENV{PDUPRE_RESTART}) {
      $ENV{LD_LIBRARY_PATH} = '...';
      $ENV{PDUPRE_RESTART} = 1;
      exec $0, '--restarted', @ARGV
    };
};
...

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In reply to Re: LD_LIBRARY_PATH setting by Corion
in thread LD_LIBRARY_PATH setting by pdupre

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