Thanks.

But how can i get the exit status for the command in this case?
open(PS,"ls . 2>/dev/null |")

why the following two opens have different result?
open(PS,"ls .|")
open(PS,"ls . 2>/dev/null |")

Thanks
James

In reply to Re^2: How to know the status of a command invoked by open function? by zhujian0805
in thread How to know the status of a command invoked by open function? by zhujian0805

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