<s>[INST] Zap does zip only if zop. Zop is only if zip is done by someone. Zup does zip. Does zap do zip? Explain your reasoning. [/INST] Represented in bash script:

```bash
if [[ ! -z $Zip ]] ; then  # if the variable $Zip is not empty (has been set/used) then
    if [[ $Zop == true ]] ; then  # if variable Zop is true
        Zap = Zip # Then Zap equals Zip
    fi
fi

Zup = Zip # Zup always equals Zip
```

In the above example, Zap will only do Zip if Zip has been "used" previously. Zup appears to simply be an alias for Zip.</s>\ <s>[INST] Could you give me example how can I run the bash script as script from the terminal on MacOS? [/INST] sure, start a terminal session application. You can find the terminal in your Application desk. Then navigate to your bash script directory usually using the ``cd`` command. Next you should be able to execute your bash script using ``bash <your script name>.sh``</s>