[sf-perl] opening a pipe to a system command

[Loo, Peter # PHX]

Hi,
 
Would someone happen to know how I can trap an error return from the
pipe?  Here is what I am doing.
 
unless(open(SYSCMD, "| someSystemCommand -d someFlag -u moreFlag1 -w
moreFlag2")) {
  DO SOME ERROR HANDLING...
  }
 
I tried eval {}; also and nothing was trapped.
 
Hope someone has an answer for this.  :)
 
Thanks.
 
Peter Loo
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