from the next-line-please dept.
jones_supa writes "Helsinki-Vantaa airport has established a new method of monitoring security control queue times, utilizing phones with Bluetooth enabled. When a passenger passes through security control, the system calculates the time taken to queue and be served based on time stamps registered by the sensors. The plan is to eventually display all queuing times, which will allow busy passengers to decide whether it would be better to move to another checkpoint."
How many Unix hacks does it take to change a light bulb?
Let's see, can you use a shell script for that or does it need a C program?