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Java Runtime Exec No Output

It's available in the Process API via getErrorStream(). –Scott Heaberlin Jan 10 '14 at 2:42 add a comment| 1 Answer 1 active oldest votes up vote 0 down vote I have I'm not able to store the output into a String. Since Vista, System Folders always exists with the english name BUT when viewed through Explorer, the localized name is shown. In Listing 4.2, the program again attempts to execute javac.exe and then waits for the external process to complete:Listing 4.2 BadExecJavac2.javaimport java.util.*; import java.io.*; public class BadExecJavac2 { public static void check over here

Big O Notation "is element of" or "is equal" what warning labels could you see on products to be used in space? The command is running on a Unix based system, but the output is going to an IBM z/OS mainframe. I did just look at my JSP CGI parameters tutorial, and there I can see that the "Real Path" is the directory of my web app, but that doesn't help much.) Use rasdial.exe instead.

Hello Alvin, Thanks for your reply.. It's a feature. The answer is partially yes. Frozen Jack: Actor or Prop?

I can execute the "myCode" commands in the native Unix environment as a script and it sends the data to the z/OS side without a problem. I also try to type: cd .. To run the Windows command interpreter, execute either command.com or cmd.exe, depending on the Windows operating system you use. Retired horse trader.  Note: double-underline links may be advertisements automatically added by this site and are probably not endorsed by me.

This subsequently creates an operating-system-specific process (a running program) with a reference to a Process class returned to the Java VM. s.next() : ""; } Which is basically a condensed version of this: public static String execCmd(String cmd) throws java.io.IOException { Process proc = Runtime.getRuntime().exec(cmd); java.io.InputStream is = proc.getInputStream(); java.util.Scanner s = Also, sorry for the delay. Using Runtime.exec() This example will capture the output (from stdio) of an external program.

What you do with the output of the command executed is entirely up to you and the application you're creating. (Note: There is also a getOutputStream() method that you can use Reply Submitted by Dauren Mussa (not verified) on November 12, 2009 - 8:02am Permalink What about cmd command in Windows Hi everyone. Word for fake religious people Did Donald Trump say that "global warming was a hoax invented by the Chinese"? Business...

That being said, if your code appears to be locking up with no input or output, please look at my new Java exec article, which gets around the problems of this more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Why can I not filter it inside my REST API end point How can I keep the computers on my spaceship from dying after a hull breach? Thanks & Regards Suyog Reply Submitted by harry (not verified) on September 19, 2009 - 7:01am Permalink execute shell commands with pipes in java hi, i am not able to execute

I believe any path beginning with a slash means it starts from the root location, even in windows. check my blog This month, I'll discuss the traps lurking in the Runtime.exec() method.Pitfall 4: When Runtime.exec() won'tThe class java.lang.Runtime features a static method called getRuntime(), which retrieves the current Java Runtime Environment. It is also not using a ProcessBuilder as now recommended twice. package com.rgagnon.howto; import java.io.*; public class Exec { public static void main(String args[]) { try { String line; Process p = Runtime.getRuntime().exec("cmd /c dir"); BufferedReader bri = new BufferedReader (new InputStreamReader(p.getInputStream()));

Reading the standard error probably isn't required in this case, but I thought at the very least it was at least worth showing, if not good programming practice. See http://msmvps.com/blogs/carlosq/archive/2007/02/12/windows-vista-junctions-points-mui-and-localized-folder-names.aspx Please enable JavaScript to view the comments powered by Disqus. I found I was getting deadlock if I didn't empty the Streams, and a ConcurrentModificationException if I tried to read the ArrayLists before they were completely filled; hence the 1-second delay. this content Can I say: "I'm the man who was there"? (changing from 1st to 3rd person) What exactly is f => f in JavaScript?

How our Java exec code works The first thing you do is specify the command you want to run by supplying this command to the Runtime class. share|improve this answer edited Jul 14 at 14:57 Geoffrey Wiseman 2,58811433 answered Jul 14 at 11:41 brahmananda Kar 212 This does not provide an answer to the question. That article not only uses these newer Java classes, but it also resolves the issues of reading the standard output and standard error streams from the system command you want to

Do progress reports belong on stderr or stdout?

Thanks Reply Submitted by caze (not verified) on June 1, 2010 - 9:50am Permalink runtime exec() doesn't work for network directory hi , i am trying to access the network drive more hot questions question feed lang-java about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Because you can't create your own instance of the Runtime class, you first use the getRuntime method to access the current runtime environment and then invoke the Runtime exec method. However I am not aware of how I can get the output the command returns.

I like it :) –Bohemian♦ Nov 12 '11 at 20:25 @dma_k Thank you for the correction. –Peter Lawrey Nov 12 '11 at 21:56 1 wont \bin refer to if you have your Java web app running in a JVM, just add this line of code to a JSP you can hit (put it inside of some PRE tags), and Subsequently, they run into Runtime.exec()'s third pitfall. http://evollux.net/java-runtime/exec-runtime-java-example.html Thank You!