/var/log/mysql - Can I Delete It

Question: Is it safe to delete the files in /var/log/mysql ? Also, is there some way I can disable logging so that this folder does not get filled up again?

Explanation:

Last night I started running a Perl script to process the data contained in some files, and then do a series of INSERTs to put them in a MySQL database. When I checked on it this morning, I found that it was very close to being done, but had locked up. I had trouble doing anything at all, actually, until I realized that 100% of the disk space on my hard drive had now been used. I went to investigate, and I quickly realized that my /var/log/mysql folder was over 120GB!

My intuition tells me that this folder is just used to store logs of what MySQL is doing. However, I have no need for these logs, and seeing as they are (unnecessarily) using over 120GB of my hard drive space, I would like to delete everything in that folder. But I'm still fairly new to Linux, and I'm not sure if this is safe. Can I just delete these files? And also, to prevent this from happening again, is there some way I can disable MySQL from creating such enormous log files?