New log format - how to delete?

[mlines]

This post is deleted!

[mlines]

Found it - truncate -s 0 does the trick. FYI for anyone interested - here is what you can do to dump, save, clear the current and old logs:

tail -100 /var/log/filter.log | cp /var/log/filter.log /var/log/oldfilterlogs/filter_date +"%Y%m%d_%H%M".log | truncate -s 0 /var/log/filter.log | find /var/log/oldfilterlogs/ -type f -mtime +30d -delete