Audio change script

[Codafire]

Hi again mates. Im making an script to add a new element to the RetroPie menu, so i can change audio output between HDMI and Jack without entering the dos type menus, only pushing the new option i added.

The code its the next, im having problems so i dont know where is the problem, any help? Thanks.

#!/usr/bin/env bash

AUDIO=0

if [[AUDIO=0]]; then
amixer cset numid=3 1
AUDIO=1
else [[AUDIO=1]]; then
amixer cset numid=3 2
AUDIO=0
fi

exit

Any help?

[mitu]

Well, I'd suggest you take a primer in Bash scripting, because there's some basic blocks that you're missing. I suggest using the Bash scriptiung guide to get started.

1. The variables are referenced with $VARNAME,
2. if testing expression needs space around the condition
   3 . The condition should be ==, = is an assignment operator.
3. There's no then after else and else does not have a test expression as

What you want is probably similar to this

#!/usr/bin/env bash
 
AUDIO=0
 
if [[ $AUDIO==0 ]]; then
echo "Audio zero"
AUDIO=1
else
echo "Audio one"
AUDIO=0
fi

[Codafire]

Thanks a lot, i solved it!!!