BeanShell : Java light weight interpreter scripting language , used in JMeter

https://beanshell.github.io/manual/bshmanual.html

Download .jar file https://beanshell.github.io/download.html

place it in
__JavaInstalltionPath_\lib\ext folder
       C:\Program Files\Java\jre1.8.0_231\lib\ext

Check JavaPath is pointing correctly.

We can run in command prompt as well in GUI

1) Cmd Prompt

2) GUI

Open GUI command