This question already has an answer here:
I have 9.5 GB of log files and would like to clear them from my system and keep that much stuff from being created, how do I do this?
Here is the output from
sudo du -sh /var/* ~/.xsession-errors:
13M /var/backups 204M /var/cache 112M /var/crash 4.0K /var/games 503M /var/lib 4.0K /var/local 0 /var/lock 9.5G /var/log 85M /var/mail 4.0K /var/metrics 24K /var/opt 0 /var/run 1.7M /var/spool 391M /var/tmp 11G /var/tvmobili 20K /var/www 224K /home/school/.xsession-errors