Pipes and sockets are integral concepts in Perl that facilitate inter-process communication (IPC). They allow different processes to communicate with each other by sending and receiving data, enabling coordination and data exchange in a variety of applications.
A pipe in Perl is a unidirectional communication channel that allows one process to send data to another. The data is typically sent through the standard input/output.
Here's an example of how to use pipes in Perl:
# Creating a pipe
open(my $pipe, '|-', 'sort') or die "Cannot open pipe: $!";
print $pipe "banana\napple\ncherry\n";
close($pipe);
Sockets provide a way for processes to communicate over a network. They can be used for both client-server architectures, allowing remote communication across different machines.
An example of using sockets in Perl is shown below:
use IO::Socket;
# Creating a socket
my $socket = IO::Socket::INET->new(
PeerHost => 'localhost',
PeerPort => '3000',
Proto => 'tcp'
) or die "Could not create socket: $!\n";
# Sending data
print $socket "Hello, World!\n";
close($socket);
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