ROL>sh symbol perl
  PERL == "$PERL_ROOT:[000000]PERL.EXE"

ROL>sh logical PERL_ROOT
   "PERL_ROOT" = "$1$DGA3501:[SYS0.SYSCOMMON.PERL5_8_6.]" (LNM$JOB_83494F40)

ROL>perl  -e "print $^X, qq(\n)"
$1$dga3501:[sys0.syscommon.perl5_8_6.][000000]perl.exe;1