I am using Net::SSH::Perl to ssh and run command. I can not get print stdout or stderr. Uninitialized error is reported. Looks like module is initializing and somewhere it's not reporting. Any thoughts will will helpful.

script output START

Creating ssh object... done
Logging into server... done
Running command (df)... done
Use of uninitialized value $stdout in concatenation (.) or string at p
+erlscript.pl line 28.

[download]

script output END

script START

#!/usr/bin/env perl -w

use strict;
use warnings;
use Net::SSH::Perl;

######################################################################
+#
# LOGIN DETAILS
######################################################################
+#
my $server = "10.255.255.10";
my $username = "user";
my $password = "password";

# Log into server
print "Creating ssh object... ";
my $ssh = Net::SSH::Perl->new($server); # Error check this
print "done\n";
print "Logging into server... ";
$ssh->login($username, $password); # Error check this
print "done\n";

# Check df
my $command = "df";
print "Running command ($command)... ";
my ($stdout, $stderr, $exit) = $ssh->cmd($command); # Check output
print "done\n";

print "$stdout\n";

$ssh->cmd("exit");

[download]

script END

Debug output START

Use of uninitialized value $stdout in concatenation (.) or string at p
+erlscript.pl line 28.

server-01: channel 2: new [client-session]
server-01: Requesting channel_open for channel 2.
server-01: Entering interactive session.
server-01: Requesting service exec on channel 2.
server-01: channel 2: open confirm rwindow 0 rmax 32768
server-01: input_channel_request: rtype exit-status reply 0
server-01: input_channel_request: rtype eow@openssh.com reply 0
server-01: channel 2: rcvd eof
server-01: channel 2: output open -> drain
server-01: channel 2: rcvd close
server-01: channel 2: input open -> closed
server-01: channel 2: close_read
server-01: channel 2: obuf empty
server-01: channel 2: output drain -> closed
server-01: channel 2: close_write
server-01: channel 2: send close
server-01: channel 2: full closed
[root@server-01 Name]#

[download]

Debug output END

In reply to Uninitalized error for Stdout and Stderr from Net::SSH::Perl by waytoperl

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