Processing 1.0 - Processing Discourse - using open() to execute a bash script

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Index › Programming Questions & Help › Syntax Questions › using open() to execute a bash script

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using open() to execute a bash script (Read 1354 times)

action_owl

using open() to execute a bash script
Dec 31^st, 2009, 1:01pm

I am trying to use the open() function to execute a script, however when I call open on "/home/user/script" the script is open in a text editor instead of being executed, I have used chmod to make the script executable for all users but I'm not sure what I'm missing.

Code:


open("/home/user/script")

//also tried using exec:

String[] params = { "exec", "/home/user/script" };
open(params);

Thanks for any suggestions

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jeffg Senior Member Offline Posts: 472	Re: using open() to execute a bash script Reply #1 - Dec 31^st, 2009, 1:32pm Try to give it a .sh extension. Or maybe run as something like Process p = Runtime.getRuntime().exec("/home/user/script");

action_owl Junior Member Offline Posts: 55 IN	Re: using open() to execute a bash script Reply #2 - Dec 31^st, 2009, 2:14pm Thanks jeffg, I already tried adding .sh, and I'm not sure how to utilize: Code: Process p = Runtime.getRuntime().exec("/home/user/script"); Could you elaborate or point me to some documentation? Thanks again
	Anything on the internet is for the taking, provided you can find a way to acquire it.

koogy

Re: using open() to execute a bash script
Reply #3 - Dec 31^st, 2009, 2:23pm

open page says:
"On Linux, it first tries gnome-open, then kde-open, but if neither are available, it sends the command to the shell without any alterations."

what does the file bash command say for the file?
file /home/user/script

try adding #!/bin/bash as the first line and make sure it's executable. (.sh isn't enough, unix doesn't use extensions to determine filetypes)

action_owl Junior Member Offline Posts: 55 IN	Re: using open() to execute a bash script Reply #4 - Dec 31^st, 2009, 2:29pm file outputs: Bourne-Again shell script text executable I have #!/bin/bash at the top, the script runs fine directly from the shell. I'm running XFCE4 but that shouldn't make a difference
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jeffg

Re: using open() to execute a bash script
Reply #5 - Dec 31^st, 2009, 3:27pm

you could also try
Code:


Open("bash /home/user/script");

Code:


String line;
Process p = Runtime.getRuntime().exec("/home/user/script");
BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));

while ((line = input.readLine()) != null) {
	 println(line);
}

input.close();

action_owl Junior Member Offline Posts: 55 IN	Re: using open() to execute a bash script Reply #6 - Jan 1^st, 2010, 7:03pm thanks jeffg, I'm going to try out your getRuntime().exec method. I have had success by giving the script a unique extension such as Code: script.myext then right clicking and having bash as the default application for ".myext" this doesn't feel like the best way to go though
	Anything on the internet is for the taking, provided you can find a way to acquire it.

PhiLho YaBB Moderator Offline Posts: 4190 Near Paris (France)	Re: using open() to execute a bash script Reply #7 - Jan 2^nd, 2010, 2:48am Perhaps searching what other people tried before can help (or not...): Execute shell script xubuntu At least, cross-referencing is good!

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