# AWK-Skript generieren und von einem externen Interpreter ausführen lassen
BEGIN {
  # Variante 1: via Pipe
  awk = "awk -f -"
  print "BEGIN { print 1/3 }" | awk
  close(awk)

  # Variante 2: via File
  awk_file = ENVIRON["HOME"] "/awk_file.awk"
  print "/^root:/" > awk_file
  close(awk_file)
  system(sprintf("awk -f %s /etc/passwd", awk_file))
  system("rm " awk_file)
}