AppleScript syntax do shell scripts

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AppleScript syntax do shell scripts

Hi guys,

i am having endless issues with the syntax of the following applescript. Please help me and i'll make you my new god, cheers. The

applescript syntax is:

tell application "Finder"

display dialog ¬

"Select Output Source" buttons {"Computer", "TV"} default button "TV"

set InternalSpeakers to (do shell script "cd ~/Downloads/SwitchAudioSource-v1; ./SwitchAudioSource -s 'Built-in Output'")

--InternalSpeakers is now a variable which changes the sound output to Computer

set HDMI to (do shell script "cd ~/Downloads/SwitchAudioSource-v1; ./SwitchAudioSource -s 'Soundflower (16ch)'")

--InternalSpeakers is now a variable which changes the sound output to TV

if button returned of result = "Computer" then InternalSpeakers

if button returned of result = "Computer" then HDMI

end tell

at the moment i am getting the following error:

I have tried arranging and re-arranging the applescript to no avail, please help me 😟

MacBook Pro, iOS 5.1

Posted on Feb 27, 2013 6:19 PM

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Answer 1

Best reply

Frank Caggiano

Level 7

25,969 points

Feb 27, 2013 7:17 PM in response to Benjamyn

You're over complicating the situation. This

set InternalSpeakers to (do shell script "cd ~/Downloads/SwitchAudioSource-v1; ./SwitchAudioSource -s 'Built-in Output'")

--InternalSpeakers is now a variable which changes the sound output to Computer

sets InternalSpeakers to what the do shell script returns. It does not set InternalSpeakers to hold the do shell script command to run when you access the variable. There are ways to do this but its not needed here. Just do thsi as a simple if then else

display dialog ¬

"Select Output Source" buttons {"Computer", "TV"} default button "TV"

ifbutton returnedofresult = "Computer" then

do shell script "cd ~/Downloads/SwitchAudioSource-v1; ./SwitchAudioSource -s 'Built-in Output'"

else
ifbutton returnedofresult = "TV" then

do shell script "cd ~/Downloads/SwitchAudioSource-v1; ./SwitchAudioSource -s 'Soundflower (16ch)'"

end if

Something like this will work. Also there is no reason for the code you show to do it in a tell block. The Finder isn;t needed for this.

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Answer 2

Benjamyn Author

Level 1

0 points

Feb 27, 2013 8:15 PM in response to Frank Caggiano

Thanks so much man,

you're my new god,

didn't know that about the tell blocks with finder either, started applescripting 3 weeks ago and its the easiest but weirdest syntax. Do you know what these symbols are for also lol?

¬

i pretty much just copied a script then amended it for this

thanks so much again

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