I have a simple startup script to launch cgminer on restart (Ubuntu) and have 2>cglog.txt to generate a log. Of course it overwrites on every restart, which isn't exactly useful. Is there a way to make it change the name of the log on every restart so it doesn't overwrite?
You could do this with a system variable if there was a dynamic one. You could probably also drop in some random data from /dev/urandom using dd in a subcommand if you wanted to. However, first, I would try 2>>cglog.txt to see if that works for appending to the existing file or have the script rename the existing file to somethiing else before starting cgminer (after deleting the something else from the previous startup).