Error while calling a schell script from java

[satishbsk kumar]

Hi All,

I am trying to call an unix schell script from my java program using java.lang.Process class.

Code :

try{
String scriptName = "testScript.ksh";
String argName ="argValue";
String exeArgument = "/usr/bin/ksh "+scriptName+" "+argName;
Process proc = Runtime.getRuntime().exec(exeArgument);
int exitValue = proc.exitValue();
sop("Exit Value is : "+exitValue);
}
catch(Exception e)
{
    e.printStackTrace();
}

testScript.ksh:
--------------
This script will inturn calls an exe file.


I am able to run the script successfully manually using below command
/usr/bin/ksh testScript.ksh argValue.


But, i am getting exit value 139 while calling from java class. From the logs, i am observed that testScript.ksh getting called,but it's failing to call exe file.

Thanks in advance,
Regards
Satish

[satishbsk kumar]

Hi All,

Any one please reply...

[Lorand Komaromi]

The value of scriptName should end with a space!

[satishbsk kumar]

Hi Lorand,

Space is present after the scriptName. And also note that after the construction of exeArgument ,
parameter passed to execute() method is

/usr/bin/ksh testScript.ksh argValue.

This is similar to the command which i am running manually. I mean, both commands are same.

And also note that, when i am running manually script is able to generate the full log. Which is zero byte in case of calling from java.


Regards,
Satish Kumar

[Lorand Komaromi]

satishbsk kumar wrote:
Space is present after the scriptName.

Right, sorry, I didn't notice it on the 4th line...

It could be that when you call ksh like this, some environment variables upon which your application depends will not be set. I had a similar issue with bash...

[Rob Spoor]

Search for and read the JavaWorld article "When Runtime.exec() won't".