[1]   Bus error (core dumped) ${perlprog} -V:prefix -V:scriptdir -V:man1dir ...
[1]   Done                    echo __dummy__ |
      Bus error (core dumped) ${perlprog} -pe "0" ${opt_packlists} |
      Done                    while read file junk; do if [ ! -f "${file}" ]... |
      Bus error (core dumped) ${perlprog} -w -