perl -Te "use Devel::Peek; my $x = $ENV{PATH}; Dump $x;"
SV = PVMG(0x5d1fc8) at 0x56e6f8
  REFCNT = 1
  FLAGS = (POK,IsCOW,pPOK)
  IV = 0
  NV = 0
  PV = 0x575628 "... long list of pathnames ..."\0
  CUR = 852
  LEN = 854
  COW_REFCNT = 1