coz u can integrate lout completely in a pipe without needing to delete temporary files afterwards.

  #!/bin/bash
  lout -s <<END_OF_TEMPLATE | gv -
  @SysInclude{doc}
  @Document
  @InitialFont { Palatino Base 11p }
  //
  @Text @Begin
  @Verbatim @Begin
  @Include{"$1"}
  @End @Verbatim
  @End @Text
  END_OF_TEMPLATE