/path/to/usb/bin/zxdl https://example.com/file.zip
A portable script should not know "who" it is or "where" it is running. Use parameterization to inject values at runtime. zxdl script portable
When executing the script, pass the endpoint URL via the command line or a configuration file. This allows the exact same script file to run in Development, Testing, and Production without modification. /path/to/usb/bin/zxdl https://example
Add integrity checks after each download to ensure file validity: zxdl script portable
set TEMP_DIR=%TEMP%\zxdl_temp mkdir %TEMP_DIR%