Data-ingestion run error

[MatheusHRV]

On azure-search-openai-demo codespace, after deploying the application i uploaded a .pdf file on 'data' folder and tried to run the "./scripts/prepdocs.ps1" based on the https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/docs/data_ingestion.md instructions.
But i'm getting this error:

@MatheusHRV ➜ /workspaces/azure-search-openai-demo (main) $ ./scripts/prepdocs.ps1
./scripts/prepdocs.ps1: line 1: ./scripts/loadenv.ps1: Permission denied
./scripts/prepdocs.ps1: line 3: =: command not found
./scripts/prepdocs.ps1: line 4: syntax error near unexpected token `{'
./scripts/prepdocs.ps1: line 4: `if (Test-Path -Path "/usr") {'

Note that 'Permission denied' error... Point out if i'm doing something wrong.

[MatheusHRV]

"./scripts/prepdocs.sh" worked!

But i don't know if the error i mentioned was expected in that situation, i think it should work.