Script not working

[fidoboy]

Hi, when i execute this i get this output:

/audio_cloverALC-100.command: line 261: [: ==: unary operator expected
Error: no IOReg/HDEF; BIOS/audio/disabled or ACPI problem
No system files were changed
To save a Copy to this Terminal session: Terminal/Shell/Export Text As ...

what's wrong?

[toleda]

OS X requires IOReg/HDEF, usually, dsdt/HDEF. Without knowledge of the hardware, cannot recommend a specific solution. See Add HDEF.../https://github.com/toleda/audio_ALCInjection