>> HI,
>> 
>> I have started learning PERL recently. I wanted some explaination
>> regarding the following command.
>> 
>> open(FILE, "|-")
>> 
> 
> Perl implicitly forks a child process. the FILE file handle is opened with
> write access in the parent process. what the parent process writes to FILE
> can be read by the child process via STDIN. this allows you to do simple
> ipc communication between the parent and the child process. for example:

[stuff cut out]

Why would you ever do this?  When would this be used?

- Bryan


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