Running a command line in Java

Dear all,
I have a question, I need to run a command line in a Java program. The commands line is the next:
cas.exe -i file1
I have been seeing in internet and I have tried:
Process ls_proc = Runtime.getRuntime().exec("cmd /c start D:\\cas>cas.exe -i file1");
it start the window where the cas folder is... but it dont run the commands line : cass.exe -i file1 :(
Somebody can help me, please??
Andrea

try running it like this.
Process ls_proc = Runtime.getRuntime().exec("cmd /c start D:\\cas>cas.exe -i file1" +"\n");
if that does not work put this underneath the original.
ls_proc.newLine();
or look into the ProcessBuilder class in java.lang.

Similar Messages

Error while running the SAP JCO java program running via command line

Hi,
We are facing an issue while using SAP JCO. When i try to run the sample program using RAD 8.0 ( IBM IDE tool For Java Development) its working fine.
The same sample program if i try to run using command line, Then its giving below exception message.
Exception in thread "main" java.lang.NoClassDefFoundError: Integration
NOTE: I have configured proper sapjco jar & Dll files path in class path settings in my batch file.

Hi,
class loader can't find class definition during runtime but it could find it during compilation. So the problem is with your classpath. Does your classpath point to file with class Integration? Check this [blog|http://javarevisited.blogspot.com.au/2011/06/noclassdeffounderror-exception-in.html].
Cheers
Added reference to blog.

Running ssh command in a java application

Hi there!
I am trying to run a ssh command from a java application cause I need to store the result.
Actually I can run this command in the cygwin shell so I need to open the shell and run the command, all trough java.
so, what my process needs to do is:
1) open the cmd
2) run C:\cygwin\cygwin.bat
3) execute the ssh command
ssh -l fip-user ipdb fip 42704) print the result of the ssh command.
Note that the cygwin opens in the same command line window and so will print it's result to the same process inputstream
Message was edited by:
RBervini

Use "Runtime.getRuntime().exec()" to execute the SSH program,
and you can then get the output of the SSH program
via the getInputStream() method on the returned Process object.
Note: there are many pitfalls with this. In particular, most people don't know
they should create separate threads to drain the input/output pipes.
See this excellent classic article http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html
on how to do it right.

How to run a command line argument

i want to run a command line argument, say for eg......i want to execute the "dir" command on the dos prompt and capture the output.
how can i do this.
actually i want to capture the output of the ping command and write it to a file. can any body plsssssss help

This command runs a ping to "address" and writes the output back to the command line. To capture it, just put strings into an array or do whatever you want with it. If you want to wait until the program completes before reading its input, use p.waitFor().
Process p = Runtime.getRuntime().exec("ping " + address);
BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
String currLine = null;
while((currLine = in.readLine()) != null)
System.out.println("ping: " + currLine);
[/code

How to make system call to execute command line in JAVA?

Hi,
I am new in JAVA. How to make system call to execute the following command line in JAVA in LINUX environment.
rpm -qa jdkIn C programming, use as such:
system ("rpm -qa jdk");
How about JAVA?
Thanks.

Runtime.getRuntime().exec. But first read this:
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html

Clear screen in "Run SQL Command Line" causes the utility to dump in Window

Just for your notice... I have not checked if i can reproduce this on Linux platform or on second node running Windows XP Pro.
But if I use "Run SQL Command Line" utility and do
clear screen
The utility dumps, (not the database though only the utlility)
Maybe some other people could confirm if this findings is a bug or not and if it is a port specific issue with Windows XP only.
Kindly Rgds
/Ulf, Kentor IT Sweden

Tracking info is in
Re: SQL*Plus generated Program Error
-- cj

Run Basic Command-line Java Programs in Sandvox

Is it possible to put a command-line Java program on a website in Sandvox and make it run?

See: documentation for designers

Running a windows command line in java?

Hi guys.
I wonder if there's a way to run windows (dos) commands from within java. the code goes like:
if (setting == true) {
run dos command "ECHO Command is activated and running."
please reply if you are able to help out. thanks a lot
- n3phi|im`

note that in some cases you can use a normal
Runtime.exec ("program arg1 arg2");
but in some cases the commands are built into the shell, so you have to do
Runtime.exec ("command.com /c copy myfile here");
"copy" is one of them, and "echo" is probably one too. The latter should work for all programs and commands, but might involve some overhead as a new instance of 'command' is created and destroyed for every command.

Running curl command from a java program using Runtime.getRuntime.exec

for some reason my curl command does not run when I run it from within my java program and errors out with "https protocol not supported". This same curl command however runs fine from any directory on my red hat linux system.
To debug the problem, I printed my curl command from the java program before calling Runtime.getRuntime.exec command and then used this o/p to run from the command line and it runs fine.
I am not using libcurl or anything else, I am running a simple curl command as a command line utility from inside a Java program.
Any ideas on why this might be happening?

thanks a lot for your response. The reason why I am using curl is because I need to use certificates and keys to gain access to the internal server. So I use curl "<url> --cert <path to the certificate>" --key "<path to the key>". If you don't mid could you please tell me which version of curl you are using.
I am using 7.15 in my system.
Below is the code which errors out.
public int execCurlCmd(String command)
          String s = null;
          try {
              // run the Unix "ps -ef" command
                 Process p = Runtime.getRuntime().exec(command);
                 BufferedReader stdInput = new BufferedReader(new
                      InputStreamReader(p.getInputStream()));
                 BufferedReader stdError = new BufferedReader(new
                      InputStreamReader(p.getErrorStream()));
                 // read the output from the command
                 System.out.println("Here is the standard output of the command:\n");
                 while ((s = stdInput.readLine()) != null) {
                     System.out.println(s);
                 // read any errors from the attempted command
                 System.out.println("Here is the standard error of the command (if any):\n");
                 while ((s = stdError.readLine()) != null) {
                     System.out.println(s);
                 return(0);
             catch (IOException e) {
                 System.out.println("exception happened - here's what I know: ");
                 e.printStackTrace();
                 return(-1);
     }

Class files created with JBuilder don't run from command line ?

I have created an Application with JBuilder which is
running perfectly from within JBuilder.
However when I tried to run the app from the command line using c:\java ...... I got an error
Exception in thread "main" java.lang.NoClassDefFoundError: ItasApplication/class
I also tried to compile my .java files with javac which
worked perfectly but I got the same message when trying
to run the app!
Can you help me ?

I did this and I got this message :
Exception in thread "main" java.lang.NoClassDefFoundError: ItasApplication (wron
g name: itasgui/ItasApplication)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:11
1)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)

How to run a command line window from code?

In an application I need to run a dll file with a few arguements. These arguements can be given in the command line window. The execution of the dll file will return a string that i need to get (for the parsing etc).
1. How can I open a command line window from the Java code?
2. How to run commands on it?
3. How to get the results of the commands from the command line into my program?

In an application I need to run a dll file with a few
arguements. These arguements can be given in the
command line window. The execution of the dll file
will return a string that i need to get (for the
parsing etc).
A dll is used by other programs. It is not possible to run it from the command line.

Command Line Build - Java heap space error

I'm attempting to build a Flex app via the command line. Even though the build works fine from within the Flash Builder IDE, I get the following error when I attempt to build via the command line
C:\code\software\web_stuff>"C:\Program Files\Adobe\Adobe Flash Builder Beta 2\FlashBuilderC.exe" --launcher.suppressErrors -noSplash -application org.eclipse.ant.core.antRunner -data "C:\code\software\web_stuff" -file C:\code\software\web_stuff\build.xml WebControlBrowser
Buildfile: C:\code\software\web_stuff\build.xml
WebControlBrowser:
[fb.exportReleaseBuild] Compiling 1 application to C:\code\software\web_stuff\WebControlBrowser\bin-release...
[fb.exportReleaseBuild] Exception in thread "Code Model Worker" java.lang.OutOfMemoryError: Java heap space
[fb.exportReleaseBuild]         at org.eclipse.core.internal.runtime.InternalPlatform.getLog(InternalPlatform.java:404)
[fb.exportReleaseBuild]         at org.eclipse.core.runtime.Plugin.getLog(Plugin.java:282)
[fb.exportReleaseBuild]         at com.adobe.flexbuilder.codemodel.internal.bridge.WorkspaceSpecification.log(WorkspaceS
pecification.java:136)
[fb.exportReleaseBuild]         at com.adobe.flexbuilder.codemodel.internal.parsing.ASTokenizer.parseTokens(ASTokenizer.
java:386)
[fb.exportReleaseBuild]         at com.adobe.flexbuilder.codemodel.internal.search.SWCSearchDataProvider.indexFiles(SWCS
earchDataProvider.java:440)
[fb.exportReleaseBuild]         at com.adobe.flexbuilder.codemodel.internal.search.SWCSearchDataProvider$2.run(SWCSearch
DataProvider.java:364)
[fb.exportReleaseBuild]         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
[fb.exportReleaseBuild]         at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
[fb.exportReleaseBuild]         at java.lang.Thread.run(Unknown Source)
BUILD FAILED
C:\code\software\web_stuff\build.xml:4: java.lang.OutOfMemoryError: Java heap space
Total time: 1 minute 0 seconds
FlashBuilderC:
An error has occurred. See the log file
C:\code\software\web_stuff\.metadata\.log.
I've attached the .log file that is referenced.

Why isn't this documented somewhere? or if it is why isn't it easy to find?
This link ought to have a link to common issues people run into.
I just spent an hour trying to solve this same problem. FlashbuilderC.exe wouldn't even work on very small projects until I found this post, so thanks.

How to run using command line in oracle9i

Hi there...I would like to know how do you a program using the command line in oracle9i JDeveloper...coz my program is processing the input typed from the user.How do you run in oracle9i Jdeveloper.

errr Typed input would be done by typing in the console window...provided your java is waiting for keyboard input.
If you mean as commandline parameter, then you need to modify your runtime configuration for the project.

How to include a parameter executing a command line from java??

Hey
I've a problem It's very single for you: this consists in execute a command from java
in this case the command is : runas but I've tried nd is good but I can´t include the password.
This is due to the sintaxis is :
runas /user:127.0.0.1\Administrator cmd
The first command is execute but.. the problem is it show the input for the password.
And the password is not let including in the command line
How can I do that? Please help me is very urgent.
Any help will be very appreciated.
Thanks in advance.
Best Regards.

DAnt. wrote:
what is the name of the correct forum which I must visite? this is because I couln't found the correct forum.You will not find it on the Oracle website
I expect your prompt reply,help me!http://tinyurl.com/yak89nc

Execute external java command line in Java

But I can not get any result ( It does not create file test.svg) . the code is as follow
Runtime.getRuntime().exec("java -jar c:/XSLT/saxon7.jar ../webapps/wfscontroller/gml.xml ../webapps/wfscontroller/SVG.xsl > ../webapps/wfscontroller/test.svg");
If I execute "java -jar c:/XSLT/saxon7.jar ../webapps/wfscontroller/gml.xml ../webapps/wfscontroller/SVG.xsl > ../webapps/wfscontroller/test.svg" in DOS command. it works.
Anybody knows what happened?
Many thanks in advance.

The > is interpreted by the shell. When you use Runtime.exec, you don't go through the shell, you exec the executable directory. So when you exec that command, you're passing ">" as an argument to "java -jar c:/...", and chances are the main() method in that doesn't interpret ">".
So the upshot is you can't use ">", "|", "<", etc., that you can in a shell, with Runtime.exec().
Other options are to run a batch file which invokes that command line.
Or, you can get the standard output from the exec'ed process, and save it to a new file yourself.

Running a command line in Java

Similar Messages

Maybe you are looking for