Code:
cd /usr/local/src 
wget http://www.r-fx.ca/downloads/les-current.tar.gz 
tar -zxvf les-current.tar.gz 
cd les-0.*
 ./install.sh 
rm -Rf /usr/local/src/les*
View your possible options
Code:
/usr/local/sbin/les
If your unsure, run enable all options
Code:
/usr/local/sbin/les -ea