how do you run a shell script in osx from pd? (SOLVED)
Hi,
I am trying to run a shell script in osx from pd using the shell object. The shell script works perfectly fine in the terminal, but nothing happens when I try to execute the script from pd using the shell object. Does anybody know what I am doing wrong? Look at the patch below.
[ blabla/blabla/convert.sh' (
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[ shell ]
Regards,
Hans Willem
Hi Hans,
First of all, I find helpful to always add a line such as echo "MY SCRIPT" to see if [shell] is properly executing my code. To see the output in the main window of Pd, you typically connect [shell]'s outlet to a [print], such as in:
[./convert.sh(
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[shell]
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[print STDOUT]
But nevertheless, this does not influence if your script will run or not, it is more a debugging hint.
I am running Linux, but maybe this can help you: to run a script, I have to either give it permission (via chmod 755 ./script.sh) or put it in a folder that belongs to my PATH, such as ~/bin. Also, on my computer [shell] only executes it with the full path, even if the script is in the same folder! So this works:
[~/Desktop/script.sh]
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[shell]
but this doesn't, even if my pd file is also saved in the ~/Desktop:
[./script.sh]
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[shell]
I hope some of this will help, but if not I guess very soon someone who uses OS X will give you the right solution.
Best,
Gilberto
Thanks for the reply!
I tried the things you said. I gave the script permissions and I put the full path to the script in the pd message. But still no luck. The patch now looks like this:
[full/path/script.sh(
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[shell]
By the way, print STDOUT prints nothing for me.
Regards,
Hans Willem
Ah, I found a solution!
The shell script converts a .wav file to an .mp3 file using lame. I installed lame using homebrew, and that puts it in the /usr/local/bin folder.
the the script works if you run it from the terminal, but it returns an error if some other app tries to execute it.
If, in the script, you provide the full path to lame, the execution of the script from pd works as expected.
Hi Hans,
Can you share the working patch?
Cheers,
Ricky
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