Hello all. I am trying to make my perl script communicate with Rational Clearcase - update a snapshot view. To keep a long story short, if you are removing a vob source repository from a config spec of a snapshot view, clearcase prompts you asking if that is ok. Rational decided this prompt should be sent to STDERR instead of STDOUT. Doh! Here's my problem. I am trying to make my code answer the question with a "yes" every time. However, I can't seem to trap the output that's going to STDERR, send a yes, and continue on with the update.

Can anyone give me a hand? here's what i have so far: 

    local (*HIS_IN, *HIS_OUT, *HIS_ERR);
my $pid = open3(*HIS_IN, *HIS_OUT , *HIS_ERR, "cleartool setcs $CS_FIL
+ENAME");
        while(<HIS_OUT>){
            print "$_";
                        if (<HIS_ERR>){
                           print HIS_IN "yes\n";
                        }    
        }
        close HIS_IN;
        close HIS_OUT;
        waitpid($pid,0);

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This seems to get stuck in an infinite loop. This seems like it sends in the "yes" because the update continues (and i'd want to send in a "yes" to ANY of those updates..which is why there's no regex)...but something happens later on and the process seems to hang.

Code tags added by GrandFather

In reply to IPC::open3 obfuscification by Anonymous Monk

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