Scripting

Misc scripting things

How execute a bash one-liner which echo’s sleep every 10 seconds until you stop it:

$ bash -c while true; do echo sleep; sleep 10;done && echo done

This proved useful when I needed to keep a container running doing something while another container ran some database migrations. The system¹ running the containers would kill the migration container if the other container finished, but the other container had the same code and would otherwise deadlock the migration by trying to perform the migration as well. Keeping it busy worked well to avoid the exit 137 errors the system was giving me.