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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.

#!/usr/bin/env perl -w

...
print "$stdout\n";

$ssh->cmd("exit");

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

...
server-01: channel 2: send close
server-01: channel 2: full closed
[root@server-01 Name]#