$ adorn -help

usage:   adorn [options] [in.tdt [out.tdt]]

options and (defaults):
  -d depictor ..... specify depictor program name (default)
  +d depictor ..... load depictor program on adeptserver (don't)
  -h host ......... specify adeptserver host (localhost)
  -r renderer ..... specify renderer program name (none)
  +r renderer ..... load renderer program on adeptserver (don't)
  -s service ...... specify adept service ("adept")
  -z .............. zap all unused dataitems (don't)

$ cat z.smi

$SMI<C/C=C/C>
PCN<E-difluoroethene>
|
$SMI<C/C=C\C>
PCN<Z-difluoroethene>
|
$SMI<FC=CF>
PCN<Difluoroethene>
|

$ cat z.smi | adorn | tdtcat 

$SMI<C/C=C/C>
2D<-1.34,2.77,-0.36,2.51,0.36,3.23,1.34,2.96>
PCN<E-difluoroethene>
|
$SMI<C/C=C\C>
2D<-1.34,2.77,-0.36,2.51,0.36,3.23,0.09,4.21>
PCN<Z-difluoroethene>
|
$SMI<FC=CF>
2D<-1.53,1.53,-0.51,1.53,0.51,1.53,1.53,1.53>
PCN<Difluoroethene>
|