Learning Perl: 5.7. Opening a Filehandle

5.7. Opening a Filehandle You've seen that Perl provides three filehandlesSTDIN, STDOUT, and STDERRwhich are automatically open to files or devices established by the program's parent process (probably the shell). When you need other filehandles, use the open operator to tell Perl to ask the operating system to open the connection between your program and the outside world. Here are some examples: open CONFIG, "dino"; open CONFIG, "