作者：迷蒙的天蝎 | 来源：互联网 | 2014-06-17 10:53
!usrbinperl-wusestrict;submain{my@lines`-eouser,pid,etime,cmd|grepsshd`;my$users;formy$line(@line
#!/usr/bin/perl -w
use strict;
sub main
{
my @lines = `-eo user,pid,etime,cmd | grep sshd`;
my $users;
for my $line (@lines) {
if(my ($user, $pid, $etime, $cmd) = $line =~ /^([^s]+)s+(d+)s+([^s]+)s+(sshd:.+)$/) {
next if($user eq ‘root’);
my $proc = {‘pid’, $pid, ‘etime’, $etime, ‘cmd’, $cmd};
push @{$users->{$user}}, $proc;
}
}
for my $key(keys(%$users)) {
my @sshs = sort {
my ($lb, $la) = (length($b->{‘etime’}), length($a->{‘etime’}));
if($lb == $la) {
$b->{‘etime’} cmp $a->{‘etime’};
} else {
$lb <=> $la;
}
} @{$users->{$key}};
for (1 .. 1) { shift @sshs; };
for my $ssh (@sshs) {
kill 9, $ssh->{‘pid’};
}
}
}
while(1) {
main;
sleep 3;
}
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