sh_postscript
 
 Scale and translate postscript files
 
 usage:    sh_postscript         <files>
 
           sh_postscript  %value <files>
 
           sh_postscript  <-x translate pixels >  <-y translate pixels >  <-s  scale factor >  <files>
 
 example  sh_postscript %60 postscript_file.ps
 example  sh_postscript -x 10 -y 10 -s 0.6 postscript_file.ps