Zentara,

Thanks four your reply. After adding your changes to my script, I noticed that READ and ERROR do not have any data at all. This is weird because soon after I execute the binary (from a command line) it prompts with a list of choices to choose from. My suspicion is that the binary only sends out data if its STDOUT is connected to a terminal. I am not sure if open3 provides any connection to a terminal..

I tried the write at the beginning of the program (as above) but neither of $answer or $error was populated.

The pipe method you mention is what I've been using until now. I wanted to add more error checking by examining the choices the program gives the user before writing data back to its STDIN.

Thanks for your time!

In reply to Re^4: Executing command from perl script with input/output by linuxfan
in thread Executing command from perl script with input/output by linuxfan

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