perl some.pl Logged in to 192.168.0.18 Use of uninitialized value in pattern match (m//) at some.pl line 33. testing is not running Thread 2 terminated abnormally: SSHConnectionAborted at total.pl line 25 Use of uninitialized value in pattern match (m//) at some.pl line 33. b is not running Thread 3 terminated abnormally: SSHConnectionAborted at total.pl line 25 Use of uninitialized value in pattern match (m//) at some.pl line 33. c is not running Logged in to 192.168.0.19 Segmentation fault