Well, on a Real™ operating system, you could replace that with: 

my %child;
for my $cmd (  "command1", "command2", "command3"  ) {
    $child{system(1,$cmd)}= $cmd;
}
while(  %child  ) {
    my $cmd= delete $child{wait()};
    warn "$cmd failed: $?\n"
        if  0 != $?;
}

[download]

But if you are stuck on Unix, then it becomes much harder to "spawn" properly, unfortunately. I'll see if I can write up the helper function for that, but I suspect somebody else will beat me to it.

- tye        

In reply to Re: Perl wait vs Unix ksh wait (spawn) by tye
in thread Perl wait vs Unix ksh wait by mifflin

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