I am trying to simulate a micro blaze microprocessor demo design with 
ram and ports in Modelsim. For XSIM in Xilinx Vivado environment it 
allows to synthesize and implement. My problem is to start the 
simulation:

I have exported the scripts from Vivado and got a folder exportsim / 
modelsim, where I expected a do file to be used with ModelSims TCL 
window.

In fact there is a script with extension *.sh wich I do not know how to 
start

The readme says: "run ./demo.sh" but this does not work.
Leaving away the . or changing \ also has to result.

Anyone has an idea how to start this script?

It looks like this:

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# Script info

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echo -e "demo.sh - Script generated by export_simulation (Vivado v2021.1 -id)\n"

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# Main steps

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run()

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{

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  setup

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  compile

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  simulate

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}

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# RUN_STEP: <compile>

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compile()

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{

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  source compile.do ..

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}

So there are some known commands, but i never had used an sh before.

From a search I found that this might by a bash script and can be 
executed by "exec bash" but i did not get it running.

So far I know this is unix shell. Is that correct, that Vivado exports 
only for unix style?


Ideas welcomed.