Manage Multiple GRAILS version in Ubuntu.

I had installed 7 GRAILS version in my ubuntu system . To install grails in ubuntu see this link https://pkashyap28.wordpress.com/2014/09/11/configure-grails-groovy-java-intellij-idea-in-ubuntu/#more-112 . After installing GRAILS, put the code below at the bottom of .bashrc file.

function switchGrails() {

echo "Switching to grails version: $1"
sudo rm /opt/grails
sudo ln -s /opt/$1 /opt/grails
echo "Done!"
}

alias grails225='switchGrails "grails-2.2.5"'
alias grails224='switchGrails "grails-2.2.4"'
alias grails223='switchGrails "grails-2.2.3"'
alias grails233='switchGrails "grails-2.3.3"'
alias grails235='switchGrails "grails-2.3.5"'
alias grails237='switchGrails "grails-2.3.7"'
alias grails2311='switchGrails "grails-2.3.11"'

After save and exit . Compile the .bashrc file . Type cd   and . .bashrc to compile .bashrc file. How to use it :