Invoke a shell script

Hi!I am trying to invoke a shell script from within my JSP. I have tryed with Runtime().exec and Runtime.getRuntime().exec(), but it doesn't works. Does anybody Know how I can do it?

If you are using a iPlanet Web server 6.0 try "exec" tag.

Similar Messages

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
          Process Child = r.exec("/usr/bin/ksh") ; //execute command
          BufferedWriter outCommand = new BufferedWriter(new OutputStreamWriter(Child.getOutputStream()));
          outCommand.write("/opt/jboss-4.0.0/test1.sh");
          outCommand.flush();
          try
          Child.waitFor(); //wait for command to complete
          catch(InterruptedException e)
          { //handle waitFor failure
          System.out.println("ERROR: waitFor failure");
          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

Invoking unix shell scripts from java?

Hi,
could someone explain to me how one wuld invoke unix shell scripts from java.
Also, could you invoke Visual Basic scripts from java.
Finally, could you do this from an EJB?
thanks for any help....
sudu

I just posted a snippet of this solution in the topic about widows commands chech it out it works just fine for unix shell scripts.
--Ian

Invoke a shell script from java

hi all
does anyone know how to invoke a shell script from your java program?
thanks
udam

Use Runtime.exec(), make sure your script is executable, and make sure it starts with something like #!/bin/sh

Invoking a shell script from JSP

Hi,
I am trying to invoke a shell script from within my JSP. I need to pass a few parameters to this shell script also. The shell script then returns a string value to the JSP. Any ideas, how to acheive this? I would appreciate any help.
Thanks,
Fauzia

implement a method somewhere that uses Runtime.exec() internally. see here:
http://java.sun.com/j2se/1.3/docs/api/index.html
robert

Can i invoke Unix Shell Script using JSP or Java

Hi
I am working on developing web application .In this application user will upload a file and this file will be stored on server .once the file is saved i have to invoke shell script which triggers the informatica process to read the file content.
Can some please assist me on this. If any one have pseudo code for this it will be of great help
Thanks

This article has example code and explains how to use it.
You should read the entire article first.
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html

Invoking from shell script causes NoClassDefFoundError

Hi, I have a reasonably simple class that I built, that runs perfectly fine when invoked like:
java myClass params
I need it to be invoked through a bash shell script however, so I wrote a real simple one of those, that is kept in the same directory and the .class build of my program.
The bash script calls the class in the same way.
Now, here's the odd part. When invoked directly from the directory (ie, both are kept in /xyz)
pwd: xyz
invoke_myclass.sh params
The above works with no problem.
In fact the following works too:
pwd: xyz
/xyz/invoke_myclass.sh params
However, if I'm anywhere else this does not work!
ex:
pwd: abc
/xyz/invoke_myclass.sh params -> Exception in thread "main" java.lang.NoClassDefFoundError: /xyz/myclass.sh
What gives? The script is executing (it does a few other things that are working perfectly fine). This is driving me up the wall! Does anyone have any idea of what could be going on here?
Thanks so much.
-Jesse

You didn't set the CLASSPATH, did you?
In your shell script, you have this, right:
java myClass params
Try adding a -classpath argument:
java -classpath /xyz myClass params

Invoking Shell Script From QTP

Hi,
Appreciate, if somebody tells me about how to invoke a Shell script from QTP tool..?
I would also like to know any specific Approaches, Documents and related informations about this topic..
Thanks in Advance..!

Pleass search the forums for "runtime" as there are many threads and examples already posted.

Invoke shell script thru pl/sql

Hi,
Is it possible to invoke a shell script thru a stored procedure? If possible how do we go about?
For example,
We have an application which has the following architecture:
Front End : Java (web enabled)
Middle Tier : Java web server 2.0
Back End : Oracle 8.1.6 on Solaris 2.7.
Our application needs sql loader to be invoked thru the web. For that there are two approaches.
1. Call the SQL Loader from front end itself. For this we need to have signed servlets etc., This seems quite complex because our back end and web server resides in two different solaris servers.
2. Call a stored procedure from front end which in turn calls the shell scripts which can in turn invoke sql loader etc.,
Do you have better solutions? Any suggestion will be deeply appreciated.
Thanks,
Raghu.

Dear Raghu,
As per my experience calling external procedures from oracle may cause some moderate-to-severe problems. I suggest an alternative solution which is the following:
1. Your PL/SQL program calls a C cartridge using ICX. The way it works is you call utl_http.request() or utl_http.request_pieces() if the amount of data to be passed back exceeds 2000 characters.
2. The C cartridge is basically "Hello WORLD" from Oracle examples. The only change is that you substitute the WRB_printf("Hello World") with popen("script.ksh",...)
3. This way the C cartridge calls your shell script.
--PL/SQL
BEGIN
utl_http.request(...); --> calls C
END;
/* C cartridge
popen("script.ksh",...) /* --> Calls shell */
#Shell script1.ksh --> calls sqlldr
sqlldr ...
P.S. You gotta have at least Oracle 7.3.4 with the OAS at least 3.02

Invoking Shell Script from JAVA Stored procedure

I am trying to invoke shell script using Java Stored procedure.
When I run my java class outside of oracle using oracle user
account it works but as soon as i load it into database and try
to inovoke that class using PL/SQL wrapper it runs java class
but is not able to invoke the shell script. Any ideas would be
greatly appreciated.

Pleass search the forums for "runtime" as there are many threads and examples already posted.

Invoking shell script from java

I hava a shell script on a unixbox which needs to be invoked through a web application. How do I do it? What is the method to login,and then invoke the shell script? Also, should the password be directly mentioned in the java file?

Pleass search the forums for "runtime" as there are many threads and examples already posted.

Invoking shell script with mouse

How to invoke a shell script on double clicking the script in graphcal mode?

A couple of ways come to mind, but first make sure the script is executable:
$ chmod 0755 script.sh
and then:
1) Move the file into ${HOME}/Desktop and it should show up on your background window. Right-click on its icon and make sure the "open with" pane uses the right shell interpreter. You should now be able to click on the script's desktop icon and see it run. Nautilus may ask if you want to run the script, run it in a terminal, or simply view it in an editor.
or
2) Move the shell script to a directory, perhaps ${HOME}/bin, and the right-click in one of the GNOME toolbars; I prefer the one at the top of the screen. Add to the panel a customer application launcher.
HTH

Procedure to call shell script which invoke java program

Hi
I have requirement for a pl/sql procedure to invokes a shell script which calls java programs.
I was using DBMS_SCHEDULTER to invoke the shell , the shell is getting invoked but it is not executing the java programs.
appreciate your suggestions and advices .
param1=$1
param2=$2
#echo "First parameter is:"$1
#echo "Param1 is:"$param1
if [ $# -eq 1 ]; then
java -jar -Xmx512m abc.jar ${CONFIG_DIR} $param1
elif [ $# -eq 2 ]; then
java -jar -Xmx512m abc.jar ${CONFIG_DIR} $param1 $param2
fi
Regards

user458361 wrote:
Hi
I have requirement for a pl/sql procedure to invokes a shell script which calls java programs.
I was using DBMS_SCHEDULTER to invoke the shell , the shell is getting invoked but it is not executing the java programs.
appreciate your suggestions and advices .
param1=$1
param2=$2
#echo "First parameter is:"$1
#echo "Param1 is:"$param1
if [ $# -eq 1 ]; then
java -jar -Xmx512m abc.jar ${CONFIG_DIR} $param1
elif [ $# -eq 2 ]; then
java -jar -Xmx512m abc.jar ${CONFIG_DIR} $param1 $param2
fi
RegardsYou are doing the equivalent of making THREE Left turns instead of a single Right turn
Most likely the shell environment is woefully lacking in needed details
add new line as below
param1=$1
param2=$2
/usr/bin/env | /usr/bin/sort -o /tmp/capture.log
# make sure above Fully Qualified Pathnames are correct for your system!
After you invoke script from PL/SQL post content of /tmp/capture.log back here

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 = "\\";
          String args[] = new String[7];
          args[0] = "/bin/sh";
          args[1] = "-c";
          args[2] = "source";
          args[3] = currentDir + separator + "DiffEngineScripts" + separator
                    + "v4a02" + separator + "wmGenPatch";
          args[4] = sourceFileAdd;
          args[5] = destFileAdd;
          if (isReverseDeltaRequired) {
               args[6] = "reverse";
          } else {
               args[6] = "no_reverse";
          try {
               Process xyz = Runtime.getRuntime().exec(args);
               InputStream result = xyz.getInputStream();
               InputStreamReader isr = new InputStreamReader(result);
               BufferedReader br = new BufferedReader(isr);
               String line = null;
               while ( (line = br.readLine()) != null)
                    System.out.println(line);
               int exitVal = xyz.waitFor();
               System.out.println("Leaving Testrun.java");
          } catch (Throwable t) {
               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
Thanks in advance

How can i pass parameter values from html to a shell script

Hi Guys...
I had a requirement where i need to execute a sql statement and print the output in HTML page. This report has parameters to enter. So i created a HTML form which accepts parameters. When the submit button is pressed, the action tag in the form invokes unix shell script file. It will open sqlplus and run the sql script file .sql and print the output in the HTML page.
sql script contains the query and some set options which prints the output in HTML page. Like "SET MARKUP HTML ON"... The query has some parameters like "select * from emp where empno = &&empnumber. I will use the same name "empnumber" while created the HTML parameter form like " <input type = "text" name="empnumber" size="10" align="left">.
user sees this parameter form and enters some value in to that empno text box.
My question is how can i catch these parameter values in a shell script and pass it to the sql script to execute it.
Help Appreciated
Thanx

This is a A Bad Idea (tm). This type of CGI processing is old and were (and still is) full of security holes. Very easy to inject stuff (Unix commands and SQL) into it.. To get those parameters into SQL*Plus requires using Unix shell commands to process it - and something like a backquote allows all kinds of nasty stuff to be injected. The Unix shell was never designed to be used as a secure CGI environment.
There are far better and far superior alternatives. Perl (with Perl_DBI) and PHP (using Zend Core for Oracle) come to mind as web scripting languages.
Even easier is using HTMLDB. Very few moving parts. Is free. Supports Oracle 9.2 and 10G.

Invoke a shell script

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