I tried to login one server, execute the command "who" on it, and print out the result. 
# !/usr/bin/perl
use   Net::Telnet;   
$t=new Net::Telnet(Timeout=>30,  Errmode=>'die');
$t->open('myhostname');   
print   "ssssssss\n";   
$t->waitfor('/login: $/i');
$t->print('myusername');
$t->waitfor('/password: $/i');
$t->print('mypasswd');
print   "hhhhhhhh\n"; 
my @myoutput=$t->cmd("who");
print @myoutput;
print   "ttttttt\n";

[download]
This program could print out the "hhhhhhh" line. But it did not execute the command "who". And I did not figure out why. Could someone help me with it? Thanks a lot. PS: I tried to use $t->login('myusername','mypasswd'). It did not work either.

In reply to how to login one host and execute commands on it? by xingjin3131

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