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#!/usr/bin/perl -w

...

print $rtcloud "xxxxxxxx\r";

Use of uninitialized value in concatenation (.) or string at /usr/loca
+l/lib/perl5/site_perl/5.8.8/Expect.pm line 1431.
Closing .
...
        eval {...} called at ./get_RTcloud.pl line 0
spawn id(3) closed.
Pid 7293 of spawn id(3) terminated, Status: 0x01