in reply to Capturing output from Child processes

I don't know about any Windows weirdness, but have you tried just piping from the command directly? 

open(FH, "dir|")
  or die "Couldn't run dir: $!\n";

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Under UNIX, this construct seems to work fine: 

#!/usr/bin/perl

defined ($pid = open $fh, "-|") or warn $! and last;
if ($pid)
{
  # Parent
  while (<$fh>)
  {
    print "OUTPUT: $_";
  }
}
else
{
  # Child
  exec("/bin/ls");
}

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Re: Re: Capturing output from Child processes
by Biff (Acolyte) on Aug 06, 2003 at 18:30 UTC
    sgifford,

    Thanks. Yea, open with the command doesn't give me any errors but I have yet to get any output from the child. I tried -| in desperation. After getting my post "duped" I went and searched harder in the archives and found a post that says that |- and -| aren't supported on windows.

    I'm still not sure what open with the -| buys you that open with the command doesn't but onward and well... onward.

    Thanks again,

    Biff

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