G'day antivirus64,

Welcome to the Monastery.

Here's some links to information you might find useful. The first three are posts I made a few years ago.

• "Re: Question about communicating with a running perl script": Two separate scripts communicating via named pipes.
• "Re: Filehandle reference lost between parent and child": One script with two processes (via fork) communicating via named pipes.
• "Re^3: Filehandle reference lost between parent and child": A follow-up response to the post above. This discusses closing readers and writers and how that affects the buffer.
• "perlipc - Perl interprocess communication" has a whole section on "Named Pipes".
• The POSIX documentation has information on the mkfifo() function.