'Too big' might be a relative concept, but most of the files I see in var/log are measured in KB.
install.log is 1.7GB & goes all the way back to 2018.
I'd kind of assumed that automatic trimming/culling of this type of data would happen without my intervention. It would seem that this has not only survived that, but also any random button-pushing I might do periodically from Onyx where I will every month or three pretend I know what I'm doing & clear out some old histories, run the daily, weekly, monthly scripts, rotate logs etc.
I assume if I manually trash this log file the Mac will happily make a new one; but I'm uncertain as to whether the system relies on being able to access any of this data, and if so, how far back?
In short: Should I bin it & allow it to start over, or is there a recognised method to sensibly truncate it?
Should it, in fact, have been keeping itself tidy & something has gone awry?
Mac Pro 5,1 Mojave 10.14.6