I am trying to call BIX Extract rule from Shell script. In the below pdn link,there is a step "Set the classpath to include the JAR files in the BIX distribution's lib directory."

https://pdn.pega.com/sites/pdn.pega.com/files/help_v719/procomhelpmain.htm#tools/BIX/use-stand-alone-command-line-bix-extract process.htm

Where do I download the jars required in this BIX Distribution lib directory?

Please help.