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

Similar Messages

How to execute unix shell script from Java ...

Hi,
Anyone know how to execute unix shell script from Java?
Suppose I have several shell scripts written in perl or tcl or bash.
I just want to catch the output of that script.
Is there any ready to use module/object for this?
Please let me know, this is quite urgent for my study assigment.
Thanks in advance,
Regards,
me

Look up Runtime.exec()

Error while executing unix shell script from java program

Hi All,
I am trying to execute unix shell script from a java program using Runtime.execute() method by passing script name and additional arguments.
Code snippet :
Java Class :
try{
     String fileName ="test.ksh";
     String argValue ="satish"; // value passed to the script
     String exeParam = "/usr/bin/ksh "+fileName+" "+argValue;
     Process proc = Runtime.getRuntime().exec(exeParam);
     int exitValue = proc.waitFor();
     sop("Exit Value is : "+exitValue);
catch(Exception e)
e.printStackTrace();
}Test.ksh
export -- application realated paths..
nohup abc.exe 1> test.log 2>&1;
$1
exit.By running the above java class , i am getting exit Value: 139 and log file test.log of 0 bytes.
when i am running the same command (/usr/bin/ksh test.ksh satish) manually, it's calling abc.exe file successfully
and able generate the logs properly.
Pls let us know where exactly i am stuck..
Thanks in advance,
Regards,
Satish

Hi Sabre,
As per the guidelines provided by the article, i had done below changes..
InputStream is = null;
InputStreamReader iStreamReader = null;
BufferedReader bReader = null;
String line = null;
try{
String fileName ="test.ksh";
String argValue ="satish"; // value passed to the script
String exeParam = "/usr/bin/ksh "+fileName+" "+argValue;
Process proc = Runtime.getRuntime().exec(exeParam);
is = proc.getErrorStream();
iStreamReader = new InputStreamReader(is);
bReader = new BufferedReader(iStreamReader);
System.out.println("<ERROR>");
while((line = bReader.readLine()) != null)
System.out.println("Error is : "+line);
System.out.println("</ERROR>");
int exitValue = proc.waitFor();
sop("Exit Value is : "+exitValue);
catch(Exception e)
e.printStackTrace();
Now , it's showing something like..
<ERROR>
</ERROR>

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

Error while trying to execute a unix shell script from java program

Hi
I have written a program to execute a unix shell script in a remote machine. I am using J2ssh libraries to estabilish the session connection with the remote box.The program is successfully able to connect and authenticate with the box.
The runtime .exec() is been implemented to execute the shell script.I have given below the code snippet.
try {
     File file_location = new File("/usr/bin/");
     String file_location1 = "/opt/app/Hyperion/scripts/daily";
     String a_mib_name = "test.sh";
     String cmd[] = new String[] {"/usr/bin/bash", file_location1, a_mib_name};
     Runtime rtime = Runtime.getRuntime();
     Process p = rtime.exec(cmd, null, file_location);
System.out.println( "Connected to the server1" );
BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
String line = br.readLine();
while(line !=null)
System.out.println(line);
line = br.readLine();
br.close();
p.getErrorStream ().close ();
p.getOutputStream().close();
int retVal = p.waitFor();
System.out.println("wait " + retVal);
//session.executeCommand("ls");
catch (IOException ex) {
I get an error message
Connected to the server
java.io.IOException: Cannot run program "/usr/bin/bash" (in directory "\usr\bin"
): CreateProcess error=3, The system cannot find the path specified
at java.lang.ProcessBuilder.start(Unknown Source)
at java.lang.Runtime.exec(Unknown Source)
at SftpConnect.main(SftpConnect.java:143)
Caused by: java.io.IOException: CreateProcess error=3, The system cannot find th
e path specified
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(Unknown Source)
at java.lang.ProcessImpl.start(Unknown Source)
I am sure of the file path where the bash.sh and test.sh are located.
Am i missing something? Any help would be greatly appreciated.
Thanks
Senthil

Hi, I am using a simple program to connect to a RMI server and execute shell script. I use the Runtime.exec aommand to do the same.
The script is sh /tmp/pub/alka/test.sh /tmp/pub/alka/abc/xyz/ul ul
The script when run from the server, gives no errors. But when ran using rthe above method in java, gives errors as follows,
Mycode:
String command = "/bin/sh /tmp/pub/alka/test.sh /tmp/pub/alka/abc/xyz/ul ul";
Runtime rt = Runtime.getRuntime();
Process proc = rt.exec(command);
int exitVal = proc.exitValue();
System.out.println("Process exitValue: " + exitVal);
java.io.IOException: CreateProcess: /bin/sh /tmp/pub/alka/test.sh /tmp/pub/alka/abc/xyz/ul ul error=3
     at java.lang.ProcessImpl.create(Native Method)
     at java.lang.ProcessImpl.<init>(Unknown Source)
     at java.lang.ProcessImpl.start(Unknown Source)
     at java.lang.ProcessBuilder.start(Unknown Source)
     at java.lang.Runtime.exec(Unknown Source)
     at java.lang.Runtime.exec(Unknown Source)
     at java.lang.Runtime.exec(Unknown Source)
     at DecryptTest.main(DecryptTest.java:18)
Can anyone please help

How to run unix shell script from java web applet

hi all
i have created one java applet. my apache web server is on unix server.
i have created one shell script in same directory where my .class and .htm files reside...
how to run this shell script from applet? it should search this .sh file on server and not on the client browser machine...
thanks in advance

I suppose you could make the shell script into a CGI, configure the server to execute CGIs, and then make the applet open the URL of that CGI.

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

Can i call unix shell script from B2B callout.

Hi,
We had a requirement to invoke a unix shell script from B2B callout implemented class. Here is the code in implementation class:
public void execute(CalloutContext context,List input,List output)
throws CalloutDomainException, CalloutSystemException {
try {
CalloutMessage cmIn = (CalloutMessage)input.get(0);
FileOutputStream fos = null;
String inputFile = "/home/orasoad/digitalsign/input/test.txt";
String outputFile = "/home/orasoad/digitalsign/output/test.txt.gpg";
File outFile = new File(inputFile);
String str =cmIn.getBodyAsString();
fos = new FileOutputStream(outFile);
Writer out = new OutputStreamWriter(fos);
out.write(str);
out.close();
String shellFile = "/home/orasoad/digitalsign/dg.sh";
String cmd[] = new String[] { shellFile, inputFile, outputFile };
Runtime rt = Runtime.getRuntime();
Process pr = rt.exec(cmd);
int i = pr.waitFor();
BufferedReader br = new BufferedReader(new InputStreamReader(pr.getInputStream()));
StringBuffer sb = new StringBuffer();
String line;
while ((line = br.readLine()) != null) {
sb.append(line);
CalloutMessage cmOut = new CalloutMessage(sb.toString());
output.add(cmOut);
} catch (Exception e) {
throw new CalloutDomainException(e);
We were able to execute the unix shell script from standalone java class with same code. But some how it is not working as expected while invoking the B2B java callout.
Is it possible to invoke unix shell script from B2B callout?
Please give inputs.
Regards,

Though it's not a good idea to invoke shell scripts from java callout but technically it will work.
But some how it is not working as expected while invoking the B2B java callout.What is not working as expected? Any error in the log (server-diagnostic.log or server.out)?
Regards,
Anuj

Call a UNIX shell script from an oracle stored procedure

We need to call a UNIX shell script from an oracle stored procedure
i.e. the control should come back to the procedure once the script completes. Can any body help to achieve this ?

There are various ways in achieving this.
For Example, you can call a PRO*C-Library residing on the database server.
This requires a PL/SQL library to be generated and some changes to the Listener configuration.
It is also possible to implement a java procedure on the database being invoked by a PL/SQL wrapper class.
In this way (and if used right) there is also granularity regarding the filestructure permissions given and it may be called during a Forms or other PL/SQL session.
The article below explains a more generic approach how to invoke shell commands from within an Oracle Instance.
Be careful with this, because it really works ;)
Refer to :
http://www.oracle-base.com/articles/8i/ShellCommandsFromPLSQL.php
Message was edited by:
user434854

Run Unix command / Run Unix shell script from Forms9i

Hi,
I have a requirement to run Unix command and Unix shell scripts from Forms9i.
I know HOST command cannot be used directly. I also know we can create some JAVA stored procedure to perform the task, but I don't want to create any JAVA stored procedure as there are some security concerns.
Please point me towards any other way to achieve the same.
I would really appreciate your help.
Thanks,
Kumar

There is no reason why HOST can't be used. This is what it is for. As for using Java, it is not a stored procedure that you would be using, it would be imported Java (imported into the form).
The best way to use the HOST command is to call a script (.sh) rather than calling a Unix command directly. This is because HOST will not pick up environment variables set at the system level. So the script would first need to set the necessary environment variables then call the desired commands.

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

Need Example on calling a unix shell script from oracle stored procedure

Hi
Can anybody give example on how to call unix shell script from an Oracle stored procedure. Please give a small example on how to do this .I need this urgently please.
Have a nice time.
Thanks & Regards
Jogesh

If you are on 10g you can also use DBMS_SCHEDULER. See Re: Excute Unix command Using PL SQL

Calling UNIX shell script from ODI package?

Hi,
How Can we call UNIX shell script from ODI package?
I have a ftp_ss.sh script which which ftps a file from remote server to local server, archives the last file and renames new file to the standard (ie file data store)name.
I want to run the above script and interfaces from a package.
Any help is greately appreciated.
Thanks,
RD

In the package window, put "OS Command" from the toolbox.
Provide the command parameters to this tool in form of "/path/to/script/ftp_ss.sh"

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.

Can I call host file ( Unix Shell script ) from Oracle 10g trigger

Hi,
I am new to Oracle 10g. Can I call host file ( unix shell script ) from Oracle 10g trigger ?. I know it is possible. Pl explain me with small example
thanks & regards
parag

user12009546 wrote:
Hi,
I am new to Oracle 10g. Can I call host file ( unix shell script ) from Oracle 10g trigger ?. I know it is possible. Pl explain me with small example
thanks & regards
paragIf you are in 10g, you can simple call shell script from DBMS_SCHEDULER:
BEGIN
DBMS_SCHEDULER.CREATE_JOB (
job_name => 'TEST_SCRIPT',
job_type => 'EXECUTABLE',
job_action => 'PATH_OF_YOUR_SCRIPT',
start_date => SYSDATE,
repeat_interval => 'FREQ=MINUTELY; INTERVAL=1',
enabled => TRUE,
comments => 'Shell script from Oracle'
END;
/

Invoking unix shell scripts from java?

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