在生成环境中通常运维需要执行非常多的重复命令，一台可能还好 多台就杯具了。尤其有时候要批量去更新多台服务器的文件，或者是删除。
一个好运维都是懒惰的，所以自己写了个perl脚本可以远程去执行shell命令，很灵活。2个配置文件，一个管理服务器信息，一个放所需要执行的命令。
code:
#!/usr/bin/perl
use strict;
use Net::SSH::Expect;
my @ssh_list;
my $ssh_txt='ip_list.txt';
my $command_txt='command_txt.txt';
open FH,$ssh_txt;
while(<FH>){
@ssh_list=split;
print "正在登陆".$ssh_list[0]."...\n";
&ssh_conn("$ssh_list[0]","$ssh_list[1]","$ssh_list[2]","$ssh_list[3]");
}
close FH;
sub ssh_conn(){
my($host,$port,$user,$pass) = @_;
my $ssh = Net::SSH::Expect->new(
host => $host,
port => $port,
user => $user,
password =>$pass,
no_terminal =>0,
raw_pty =>1,
timeout => 3,
);
$ssh->debug(0);
$ssh->run_ssh() or die "SSH process coundn't start:$!";
$ssh->waitfor( '\(yes\/no\)\?$', 1 ); #交互式修改密码，给予2秒的时间
$ssh->send("yes\n");
$ssh->waitfor( 'password:\s*$/', 1);
$ssh->send("$ssh_list[3]");
$ssh->send("su - root");
$ssh->waitfor( 'password:\s*$/', 1);
$ssh->send("$ssh_list[4]");
#$ssh->waitfor("#\s*",2);
open F1,$command_txt;
while(<F1>){
my @command=split/\n/,$_;
print "$command[0]--> ";
$ssh->exec("$command[0]");
print "$ssh_list[0]命令执行完毕\n";
}
close F1;
$ssh->close();
use strict;
use Net::SSH::Expect;
my @ssh_list;
my $ssh_txt='ip_list.txt';
my $command_txt='command_txt.txt';
open FH,$ssh_txt;
while(<FH>){
@ssh_list=split;
print "正在登陆".$ssh_list[0]."...\n";
&ssh_conn("$ssh_list[0]","$ssh_list[1]","$ssh_list[2]","$ssh_list[3]");
}
close FH;
sub ssh_conn(){
my($host,$port,$user,$pass) = @_;
my $ssh = Net::SSH::Expect->new(
host => $host,
port => $port,
user => $user,
password =>$pass,
no_terminal =>0,
raw_pty =>1,
timeout => 3,
);
$ssh->debug(0);
$ssh->run_ssh() or die "SSH process coundn't start:$!";
$ssh->waitfor( '\(yes\/no\)\?$', 1 ); #交互式修改密码，给予2秒的时间
$ssh->send("yes\n");
$ssh->waitfor( 'password:\s*$/', 1);
$ssh->send("$ssh_list[3]");
$ssh->send("su - root");
$ssh->waitfor( 'password:\s*$/', 1);
$ssh->send("$ssh_list[4]");
#$ssh->waitfor("#\s*",2);
open F1,$command_txt;
while(<F1>){
my @command=split/\n/,$_;
print "$command[0]--> ";
$ssh->exec("$command[0]");
print "$ssh_list[0]命令执行完毕\n";
}
close F1;
$ssh->close();
下面是2个文件内容。
[root@nagios script]# cat ip_list.txt
192.168.2.101 22 mcshell psswd server1
192.168.2.102 22 mcshell psswd server2
192.168.2.103 22 mcshell psswd server3
[root@nagios script]# cat command_txt.txt
touch /home/mcshell/file1
touch /home/mcshell/file2
192.168.2.101 22 mcshell psswd server1
192.168.2.102 22 mcshell psswd server2
192.168.2.103 22 mcshell psswd server3
[root@nagios script]# cat command_txt.txt
touch /home/mcshell/file1
touch /home/mcshell/file2
执行结果：
当然我这里为了测试方便，用了写的比较简单，大家也可以发挥想象，直接把复杂的shell或者perl密令直接放在command_txt.txt中。同样可以批量处理
本文转自 mcshell 51CTO博客，原文链接：http://blog.51cto.com/mcshell/988791，如需转载请自行联系原作者
