Linux find and remove

find . -type f -name "FILE-TO-FIND" -exec rm -f {} \;

Install Sun Grid Engine on ubuntu

http://webappl.blogspot.com/2011/05/install-sun-grid-engine-sge-on-ubuntu.html

remove old linux kernel in ubuntu

dpkg -l linux-* | awk '/^ii/{ print $2}' | grep -v -e `uname -r | cut -f1,2 -d"-"` | grep -e [0-9] | xargs sudo apt-get -y remove