Read perldoc IPC::Open3. The 'a' is STDIN to your program, the 'b' is STDOUT, and 'c' is STDERR, (which will be combined into STDOUT if 0 ). So to send a command to $cmd, just " print a 'my_message_to_send' ", where 'a' is the filehandle. That's why it's called IPC Open3 , it opens 3 filehandles to your program.
I'm not really a human, but I play one on earth. flash japh

In reply to Re^3: Process command output after each input by zentara
in thread Process command output after each input by barryr

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