McMyadmin editing .sh

Hi i want to edit the .sh file or what makes it launch so it looks like this.

I dont know how to do this or if it will work since my server is Dedicated.

Thanks for any help

(java -server -Xincgc -Xmx8G -Xms2G -Xmn1G -XX:NewRatio=2 -XX:CMSFullGCsBeforeCompaction=1 -XX:SoftRefLRUPolicyMSPerMB=2048 -XX:+CMSParallelRemarkEnabled -XX:+UseParNewGC -XX:+DisableExplicitGC -Xnoclassgc -oss4M -ss4M -XX:+UseFastAccessorMethods -XX:CMSInitiatingOccupancyFraction=90 -XX:+UseConcMarkSweepGC -XX:UseSSE=4...

McMyadmin editing .sh