如何在远程设备上通过 SSH 运行命令？
我正在尝试下一个想法：
1：
[root@0400smarts-voip01 test]# ssh user@IP "my command"
user@IP's password:
Connection to IP closed by remote host.
2：
[root@0400smarts-voip01 test]# ssh -t user@IP "my command"
user@IP's password:
Connection to IP closed by remote host.
Connection to IP closed.
我也在尝试通过 Perl 脚本运行命令：
#!/bin/perl
use strict;
use Net::OpenSSH;
my $hostname = "IP";
my $username = "user";
my $password = "password";
my $cmd = "command";
my $ssh = Net::OpenSSH->new(host=>"$hostname", user=>"$username", port=>22, password=>"$password");
$ssh->system($cmd);
但是这种方法也不起作用：
[root@0400smarts-voip01 test]# ./test.pl
Connection to IP closed by remote host.
我怎么解决这个问题？