Generate output files on SIGTERM

[matthiasotto]

I am running this on my Pi to help track down ISP issues. I want to push it as a job with & and then disown it so my SSH connection doesn't affect the job when I disconnect.

Later, I might want the plot file to be written by sending SIGTERM to the process.

Would this make sense?

[matthiasotto]

Furthermore, this would allow to run it on a CRON job to create a daily PNG to avoid having to draw a massive single PNG to capture a whole week. 🙂

[ccampo133]

Makes sense. I originally wrote this many years ago and realize there are substantial flaws with how it works. Probably time for a re-write!