Class/JAR File Needed for Shell Script Execution?

Hello, I have Kettle integrated with another program I am using. I am only bringing over the JAR files I need for certain jobs I will be running. All of my jobs run fine, except for the ones where I add in the Shell component to run a script. It looks like I need to bring another JAR over, but the error log is no telling me which class I am missing. Was hoping someone might know this. Thanks for any help,

-Eric