How Do I delete/Clean Syslog?

[Moltke]

I have x32 LL installed, fresh install 3mos ago.I have been losing hard drive space.
I finally found where it went, SYSLOG is 42GB in size.  ./var/log/syslog
This is on a 70gb drive.
How do I delete or clean this?  It will not let me by normal means.
Is it safe to just delete it? HOW? 
Can it be cleaned/recovered?
How can I stop this from happening?
I tried Bleachbit, but I do not see an option for syslog.
Help Please
TIA

Is this a server or a regular desktop/laptop pc? I've never had/seen a log file that big in my system. In this article/tutorial they show you how to delete/remove/clean/empty a log file https://www.cyberciti.biz/faq/remove-log...-unix-bsd/

Read here for information on how to manage log files so they stop growing out of control https://www.loggly.com/ultimate-guide/ma...inux-logs/

Another good article on the topic https://www.networkworld.com/article/342...linux.html


Hope this helps!