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Groups > comp.lang.java.programmer > #5667

runtime.exec problems

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I can't get runtime.exec to execute a program in Java. I am trying to
execute a bat file. I read that in order to run bat files as opposed
to .exe files the runtime command has to include "cmd /c start" before
the name of the bat file. I have run bat files successfully this way
before.

The command that I am running works when typed from the command line.
It is:

z:/n4/pkg/MrServers/MrVista/Simu/StartSimEnv.bat -AutoStart
GOLD_256x512.dat

When I try the following code:

File file = new File(imageDir);
cmd = "C:\WINDOWS\system32\cmd /c start "+simDir+"StartSimEnv.bat -
AutoStart " + imageName;

IJ.log("cmd = " + cmd);

Runtime runtime = Runtime.getRuntime();

try{
Process proc = runtime.exec(cmd,null,file);
}
catch(Exception e)
{
IJ.log(e.toString());
}

StartSimEnv.bat file gives a message about the usage being wrong as if
I'm giving the wrong parameters. If I delete imageName from the cmd
string it doesn't complain about usage but doesn't do the task I want
it to do.

I tried putting the parameters in an array as follows:


File file = new File(imageDir);
String[] cmdArray = {cmdPath, "/c", "start",simDir+"StartSimEnv.bat","-
AutoStart",imageName};

IJ.log("cmdArray = " + cmdArray[0] + " " + cmdArray[1] + " " +
cmdArray[2] + " " + cmdArray[3] + " " + cmdArray[4] + " " +
cmdArray[5]);
Runtime runtime = Runtime.getRuntime();

try{
Process proc = runtime.exec(cmdArray,null,file);
}
catch(Exception e)
{
IJ.log(e.toString());
}

I still get a message about usage.
I have made efforts with process builder also but can't get that to
work either. Does anyone have any ideas why this isn't working?

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Thread

runtime.exec problems Memo <gamalieli@hotmail.com> - 2011-06-25 10:58 -0700
  Re: runtime.exec problems Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-06-25 16:09 -0400
  Re: runtime.exec problems Patricia Shanahan <pats@acm.org> - 2011-06-25 13:38 -0700
  Re: runtime.exec problems Roedy Green <see_website@mindprod.com.invalid> - 2011-06-25 13:54 -0700

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