You can use Proc::Killfam:
#!/usr/bin/perl
#Proc::Killfam is part of Proc::ProceessTable module
use Proc::Killfam;
killfam $signal, @pids;
killfam 'TERM', ($pid1, $pid2, @more_pids);
Or here is a snippet of a subroutine posted by robau awhile back:
#!/usr/bin/perl
use warnings;
use strict;
#robau
#This subroutine takes two arguments, the parent process ID
#and the numeric signal to pass to the processes
#(which would be 9 if you wanted to issue a -TERM).
#Using Proc::Process you could find the process ID
#of the process login -- zentara with something similar
#to the following :
#my $proc = Proc::ProcessTable->new;
#my @ps = map { $_->pid if ($_->cmndline =~ /login -- zentara/) } @{$p
+roc->table};
#&killchd($_, 9) foreach @ps;
&killchd(9895, 9);
#kill -9 process 9895
sub killchd ($;$) {
use Proc::ProcessTable;
my $sig = ($_[1] =~ /^\-?\d+$/) ? $_[1] : 0;
my $proc = Proc::ProcessTable->new;
my %fields = map { $_ => 1 } $proc->fields;
return undef unless exists $fields{'ppid'};
foreach (@{$proc->table}) {
kill $sig, $_->pid if ($_->ppid == $_[0]);
};
kill $sig, $_[0];
};