Handling multiple processes in Perl can be accomplished using the `fork` function, which allows you to create child processes. These child processes can run concurrently with the parent process, making it an effective way to perform parallel processing tasks.
#!/usr/bin/perl
use strict;
use warnings;
my @pid;
for (1..5) {
my $pid = fork();
if (!defined $pid) {
die "Fork failed: $!";
} elsif ($pid == 0) {
# This is the child process
my $process_id = $$; # Get the current process ID
print "Hello from child process $process_id\n";
exit(0);
} else {
# This is the parent process
push @pid, $pid; # Store the child pid
}
}
# Wait for all child processes to finish
foreach my $child (@pid) {
waitpid($child, 0);
}
print "All child processes completed.\n";
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