[PD] Can I run scripts with [shell]?

IOhannes m zmoelnig zmoelnig at iem.at
Tue Jan 29 11:41:33 CET 2013


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On 2013-01-29 11:23, Alexandros Drymonitis wrote:
> I checked the help patch of [shell], but if I send a cd command
> for example, I don't think that something really happens. I
> actually would like to run a script from within Pd, but what I
> understand is that this can't be really done, is it so? Can anyone
> demonstrate something like this?

that's exactly the point: with [shell] you _should_ run scripts.

each command you send to [shell] will open a new "context".

so if you send it a "cd ..", it will create a new context (in your
working directory, lets call it ${WD}), move one directory up (so we
are now in ${WD}/.., report any output (not very much in this case),
and close the context.
if you then send it a "pwd", it will create a new context (in your
working directory ${WD}), print the PWD and close the context.

obviously your "cd.." did not affect "pwd", as they have been executed
in different contexts.

in order to do anything more complex, you have to create a
script-file, and run this via [shell].
e.g.
<snip>
#!/bin/sh
cd ..
pwd
</snip>

and run "myscript.sh" via [shell] should give you ${WD}/..

fgamsdr
IOhannes

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