Running Shell Scripts within Java code!!!

Hi,
How do I run a shell script from my Java code???
Also I need to ensure my next line of Java code is executed only after the shell script has finished executing.
Since my shell script just cuts out some line for a txt file and then only my Java code parses the cut-out file section and processes certain info.
Please help!!!
Thanks!!!

Runtime.exec and, if you need your Java to stop until the external executable is complete, Process.waitFor.
And you'll want to read this:
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html

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Invoking a bash shell script from Java code

Hi All
I am trying to invoke a Bash shell script using java code. The arguments required are "source wmGenPatch <source dir> <destination dir> no_reverse.
in the code I have specified the arguments considering the cannonical paths of the files as the code may run on Unix or windows platform.
I am getting a error while invoking Runtime.getRuntime().exec(args). The error is as follows :
"The Error Occurred is: CreateProcess: source D:\Package4.0\workspace\DiffEngineScripts\v4a02\wmGenPatch D:\Package4.0\workspace\fromImageFilesDir\ D:\Package4.0\workspace\toImageFilesDir\ no_reverse error=2"
It seems that error=2 indicates that the 'file not found' exception. But i can see the directories referred to in the error at place in the workspace.
Kindly advice.
Thanks in advance.

Hi All
I am pretty new to invoking bash shell scripts from java and not sure if i am progressing in right direction.
The piece of code tried by me is as follows
try {
               currentDir = f.getCanonicalPath();
          } catch (IOException e) {
          if (currentDir.contains("/")) {
               separator = "/";
          } else {
               separator = "\\";
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          args[0] = "/bin/sh";
          args[1] = "-c";
          args[2] = "source";
          args[3] = currentDir + separator + "DiffEngineScripts" + separator
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               BufferedReader br = new BufferedReader(isr);
               String line = null;
               while ( (line = br.readLine()) != null)
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               t.printStackTrace();
and on running the same i am getting Java.io.IOException with the stack trace
java.io.IOException: CreateProcess: \bin\sh -c source D:\Package4.0\workspace\DiffEngineScripts\v4a02\wmGenPatch D:\Package4.0\workspace\fromImageFilesDir\ D:\Package4.0\workspace\toImageFilesDir\ no_reverse error=3
kindly advice
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Running sqlplus scripts from Java code?

hi
I need to programmatically run sqlplus scripts from Java code on a machine that doesn't have sqlplus installed.
Is there any Java class library available for doing this?

The Ant approach could probably work for me, thanks for the tip.
The setup seems rather complex however, given the simplicity of the task. I would prefer just running a Java based SQL*Plus from in a separate process or doing this via an API that would allow me to run SQL*Plus scripts (parse script, substitute variables, run statements).
Oracle SQL Developer v1.1 appears to include an API that does exactly this.
The ScriptParser, Substitution and SQLPLUS classes in the oracle.dbtools.raptor.scriptrunner package (oracle.sqldeveloper.jar) seem to do just what I need based on my tests.
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Running Shell scripts through JAva

Hi,
I tried to execute a Shell script through a Java program.
The code I used is as below:
import java.lang.*;
import java.io.*;
public class sys {
public static void main(String[] args) {
Runtime rt = Runtime.getRuntime();
String[] callAndArgs = { "chgpasswd" };
try {
Process child = rt.exec(callAndArgs);
child.waitFor();
System.out.println("Process exit code is: " + child.exitValue());
catch(IOException e) {
System.err.println( "IOException starting process!");
catch(InterruptedException e) {
System.err.println( "Interrupted waiting for process!");
The "chgpasswd" shell script calls the "passwd" command of Unix.
It threw out an IO exception.
Then I gave the parameter as "./chgpasswd". It now gave an exit value of 255.
The "chgpasswd" script exists in the same directory as the .class file.
I checkd up the exit code reference...it says exit value of 255 could mean as exit code out of range........an exit code > 255....which unfortunately has no documentation, I guess.
Can you help ?

This is on a Unix platform, correct? Assuming so...
If I remember correctly, exit codes can be greater than 255. To get the real exit code equates to something like: exitcode & 512 to obtain the real exit code.
Make sure "chgpasswd" shell script has the execute permissions set. Additionally, make sure that the first line of the script (the magic line) has the appropriate shell/interpreter to execute specified. For example, if "chgpasswd" were a Bourne (sh) script, the first like would be:
#!/bin/shFor perl, it may be something like:
#!/usr/bin/perlIt needs to be the absolute path to the shell/interpreter is the point.

Running shell scripts from within oracle. A big task is forgotten

Dear List,
I have some shell shell scripts which do some tasks on the linux OS level.
I am calling the Korn scripts using a java class, which in turn is being called from a PLSQL function.
All but one of the 10 script works fine. This is the script which does the most work, and takes on average 40 minutes usually.
Why does Oracle forget the running of the shell script? I wait in my PLSQL function for the return code, but it never comes. The scripts I have not written myself !
I look forward to your reply on this matter.
regards
Ben

Hi
If you are using the Oracle database 10g, the new dbms_scheduler package allows you to run shell scripts. The dbms_scheduler.create_job procedure have one parameter called the job_action in which you specify the full path of the shell script.
I hope this will help

Running a shell script through java

Hi all,
I have a simple question here.
How can I run a shell script through java and put the text output into a string.
I'd be very grateful if you could show me sample code...
Have a great day,
Pesho

Runtime.exec()
There are plenty of examples. Read the following before continuing, however, as it will save alot of headaches:
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html

Running Unix Shell scripts through Java

How to run Unix shell scripts through Java program ?

Use:
Process p = Runtime.getRuntime().exec("sh script.sh");Then you can use:
p.getOutputStream and read the output of your program.

How to invoke a shell script using java

Hi
I am trying to invoke a shell script(unix) using java and I have tryied to load the shell using exec(cmd) and then trying to execute the shell.
But it is not working.
Can you please guide me on this matter.

Hi I am facing the same problem
I want to call a shell script through java in linux system of course.
I am using the following section of code .
public class LinuxServer {
     public static void main(String args[]){
          Runtime r = Runtime.getRuntime(); //get runtime information
          try
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          BufferedWriter outCommand = new BufferedWriter(new OutputStreamWriter(Child.getOutputStream()));
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          catch(InterruptedException e)
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          System.exit(10); //exit application with exit code 10
          catch(IOException e)
          { //handle exec failure
          System.out.println("ERROR: exec failure"+e);
          System.exit(11); //exit application with exit code 11
But when I am compiling and running this script in the linux system,
Its giving the following error.
Exception in thread "main" java.lang.NoClassDefFoundError: while resolving class: LinuxServer
at java.lang.VMClassLoader.resolveClass(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
at java.lang.Class.initializeClass() (/usr/lib/libgcj.so.5.0.0)
at java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
at java.lang.Class.forName(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
at gnu.gcj.runtime.FirstThread.run() (/usr/lib/libgcj.so.5.0.0)
at JvThreadRun(java.lang.Thread) (/usr/lib/libgcj.so.5.0.0)
at JvRunMain(java.lang.Class, byte const, int, byte const, boolean) (/usr/lib/libgcj.so.5.0.0)
at __gcj_personality_v0 (/opt/jboss-4.0.0/java.version=1.4.2)
at __libc_start_main (/lib/tls/libc-2.3.4.so)
at JvRegisterClasses (/opt/jboss-4.0.0/java.version=1.4.2)
Caused by: java.lang.ClassNotFoundException: java.lang.StringBuilder not found in [file:/usr/local/staf/lib/JSTAF.jar, file:/usr/local/staf/samples/demo/STAFDemo.jar, file:/home/db2inst4/sandip/staf/lib/JSTAF.jar, file:/home/db2inst4/sandip/staf/samples/demo/STAFDemo.jar, file:/usr/share/java/libgcj-3.4.3.jar, file:./, core:/]
at java.net.URLClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
at gnu.gcj.runtime.VMClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
at java.lang.ClassLoader.loadClass(java.lang.String, boolean) (/usr/lib/libgcj.so.5.0.0)
at JvFindClass(_Jv_Utf8Const, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
at java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
at JvBytecodeVerifier.verify_instructions_0() (/usr/lib/libgcj.so.5.0.0)
at JvVerifyMethod(_Jv_InterpMethod) (/usr/lib/libgcj.so.5.0.0)
at JvPrepareClass(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
at JvWaitForState(java.lang.Class, int) (/usr/lib/libgcj.so.5.0.0)
at java.lang.VMClassLoader.linkClass0(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
at java.lang.VMClassLoader.resolveClass(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
...9 more
Pls help

Running Shell Script

Hi all,
I need to run shell script on one of linux servers while executing some IdM workflow.
There is no need to manage that server/ provision accounts / reset passwords etc but just to run the script and to process the result.
I have IdM 8.04 installed on Windows Machine.
What are my options to achieve that mission?
Thank You,
Alex.

I was considering a situation similar to AD after actions where sometimes we execute a dos batch file for any specific purpose like creating home folder using mkdir. I was thinking on similar lines if your shell script is also for a specifc function similar to the one I mentioned above and if it is applicable in windows environment, you might covert that into a dos batch and do similar to an after action.
Since you need your shell script to be run in UNIX / LINUX machine, I do not see any other way other than writing a java class and invoke within a wf as it was mentioned by etech or if you are planning on using any of the out of the box resource adapters, the AIX resource adapter reference might help, but I have not worked with that

Apple Automator - Run Shell Script Application

Morning, hope somebody can point of my error please.
I'm attempting to create an Application wrapper for a minecraft server.
I've done the following
Automator > Application
I've dragged in 'Run Shell Script'
The Shell dropdown is '/bin/bash'
The Pass input is 'as arguments'
In the script I have '
cd /Volumes/3Tb/Bukkit_live
/usr/bin/java -Xmx2G -jar /Volumes/3Tb/Bukkit_live/minecraft_server.jar nogui
Now when I run it through the automator app, it works fine, the server starts, however when I try and run it as a standalone application it does nothing ?
Please help.
Thanks in advance.
Darren

Best guess is that there is an environment variable in your Terminal session that does not exist when you are running an Automator workflow.
You could try running an Automator workflow that does Run Shell Script with something like
( pwd
id -a
echo $#
echo "$@"
printenv
) >/tmp/automator.environment.txt
Then do 2 things. Run it within Automator and copy the /tmp/automator.environment.txt file someplace safe. Next save it as an Automator app and run it that way. Compare the 2 automator.environment.txt files and see if anything significant is different between the 2.
This is just a guess (an educated guess, as this sort of thing has happened to others in the past when they see a difference between running a script interactively and running it as an embedded app).

How to call a shell script in Java ?

Hi there,
i try to call a shell script in java but it wont work.
please can anybody help me.
my Code :
import java.io.*;
public class SendMessage{
Runtime rt;
public SendMessage(){
rt = Runtime.getRuntime();
public void send(){
try{
rt.exec("sendMessage.sh");
System.out.println("Message was Send");
catch(IOException ex)
ex.printStackTrace();
the file called sendMessage.sh is also stored in the same directory as the class File.
the exception never cames up but the script also never starts.
what is wrong ??? :-((
need help !
}

rt.exec("sendMessage.sh");Oh, sorry, I didn't see that you tried under UNIX.
BTW you should check for the OS - this stuff is very os and os release dependent.
I have not experimented with this under unix.
But something must interpret that sendMessage.sh file.
Perhaps the hash bang info is used by exec() (did you put a
#!/bin/sh as first line in your .sh file?
If not, try
rt.exec("/bin/sh sendMessage.sh");Regards,
Marc

Running bat files in java code

Hi,
I am trying to run a .bat file within java code like this.
Runtime.getRuntime().exec("c:\\Test.bat");
but no success. Could you please suggest how to run .bat file or simply a
DOS command from java code.
thanx in advance
Deepak Garg.

try this...
n reply whether it worked or not......
import java.util.*;
import java.io.*;
import java.net.*;
try
Runtime runtime = Runtime.getRuntime();
Process process ;
process= runtime.exec("./temp_install");
//code to print command line replies
InputStream stderr = process.getInputStream();
InputStreamReader isr = new InputStreamReader(stderr);
BufferedReader br = new BufferedReader(isr);
String line = null;
while((line=br.readLine())!=null)
System.out.println(line);
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t.printStackTrace();
}

How to run Perl script in Java program?

Some say that the following statement can run Perl script in Java program:
Runtime.getRuntime().exec("C:\\runPerl.pl");
But when I run it, it'll throw IOException:
java.io.IOException: CreateProcess: C:\runPerl.pl error=193
at java.lang.Win32Process.create(Native Method)
at java.lang.Win32Process.<init>(Win32Process.java:63)
at java.lang.Runtime.execInternal(Native Method)
at java.lang.Runtime.exec(Runtime.java:566)
at java.lang.Runtime.exec(Runtime.java:428)
at java.lang.Runtime.exec(Runtime.java:364)
at java.lang.Runtime.exec(Runtime.java:326)
at test.runPerl.main(runPerl.java:16)
Exception in thread "main"
Where is the problem? In fact, I do have a Perl script named "runPerl.pl" in my C:/ directory. Could anybody tell me why it can't be run? Thanks in advance.

Hello sabre,
First of all thanks for your reply.
I have tried like what you mentioned.
Eventhough, i could get the exact error message.
I could get the Exception
"Exception:java.lang.IllegalThreadStateException: process hasn't exited"
<code>
import java.io.*;
public class Sample{
public static void main(String args[]) {
String s = null;
Process p;
try
     p = Runtime.getRuntime().exec("tar -vf sample.tar");
     //p.waitFor();
     if(p.exitValue() == 0)
          System.out.println("CommandSuccessful");
     else
          System.out.println("CommandFailure");
catch(Exception ex)
     System.out.println("Exception:"+ex.toString());
</code>
In this code, i tried to run the "tar command". In this command i have given -vf instead -xvf.
But it is throwing
"Error opening message catalog 'Logging.cat': No such file or directory
Exception:java.lang.IllegalThreadStateException: process hasn't exited
CommandFailure"
"Error opening message catalog 'Logging.cat'" what this line means ie,
I dont know what is Logging.cat could you explain me its urgent.
Thanks in advance.
Rgds
tskarthikeyan

Sending arguments to shell script from Java program

Hi,
I am invoking a shell script within a Java program by runtime command.But I need to pass a variable to the shell script from the Java program!!!
Please help me!!!
Thanks!!!

You can set environment variables as the second argument to Runtime.exec(). You can pass argument on the command line. So, what sort of argument do you want to pass?

Running .jar files from Java code

Hi.
I am designing a sort of platform to run some games which are saved in .jar files. Basically this platform is a menu from which the user can select the game which he/she wants to run. It also has the feature of adding new games.
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Krt_malta

Just list the jar in the classpath list and call the class in the jar.

Running Shell Scripts within Java code!!!

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