ian@laptop2:~$ ./test.pl
This is ./test.pl version 1.0 located in /home/ian running as process 6119
ian@laptop2:~$ ./test.pl
This is ./test.pl version 1.0 located in /home/ian running as process 6120
ian@laptop2:~$ ./test.pl
This is ./test.pl version 1.0 located in /home/ian running as process 6121