tag:blogger.com,1999:blog-8712770457197348465.post6392667627203493068..comments2024-03-29T03:17:04.645-07:00Comments on Javarevisited: How to execute native shell commands from Java Program? Examplejavin paulhttp://www.blogger.com/profile/15028902221295732276noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-8712770457197348465.post-74421913550650561662017-04-06T21:42:53.991-07:002017-04-06T21:42:53.991-07:00Java 9 is coming with new Process API, where creat...Java 9 is coming with new Process API, where creating and managing Process would be much easier as shown below:<br /><br />String cmdArray = "ls -lrt";<br />System.out.println("Running a java process with PID " + ProcessHandle.current().getPid()+ ". Parent: " + ProcessHandle.current().parent().get().getPid());<br /><br />Process pr = Runtime.getRuntime().exec(Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8712770457197348465.post-58976356089346580602012-01-12T23:57:05.679-08:002012-01-12T23:57:05.679-08:00I want to push arguments in the java File How can ...I want to push arguments in the java File How can I do that.<br />Suppose, My routine is,<br /><br /> protected void executeCommand (String cmd) {<br /><br /> if (cmd == null) return ;<br /><br /> try {<br /><br /> System.out.println (cmd) ;<br /><br /> Process process = Runtime.getRuntime().exec (cmd);<br /><br /> try {<br /><br /> process.waitFor();<br /><br /> } Anonymoushttps://www.blogger.com/profile/00650378264120154667noreply@blogger.comtag:blogger.com,1999:blog-8712770457197348465.post-3322958872013223002011-08-13T18:17:04.068-07:002011-08-13T18:17:04.068-07:00Hi Anonymous, Can you put more details why you are...Hi Anonymous, Can you put more details why you are not able to execute any command from shell ? are you trying in windows or unix ? by the way this is the standard way of executing any shell command from java program. Please provide more details about your issue and we can help you better.Javin @ String vs Stringbufferhttp://javarevisited.blogspot.com/2011/07/string-vs-stringbuffer-vs-stringbuilder.htmlnoreply@blogger.comtag:blogger.com,1999:blog-8712770457197348465.post-32811173132051352362011-08-13T16:43:16.114-07:002011-08-13T16:43:16.114-07:00I tried this example but no result ,
can someone h...I tried this example but no result ,<br />can someone help me please ,t want to execute a shell command in javaAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-8712770457197348465.post-90798613423784203892011-02-25T04:56:22.009-08:002011-02-25T04:56:22.009-08:00Android developers can make great use of this for ...Android developers can make great use of this for running native code on Android devices.Beware though, the executable can only be executed from the application locally permitted application directory : /data/data/app-package-here . cheers :)Anonymoushttps://www.blogger.com/profile/07031943114221577681noreply@blogger.comtag:blogger.com,1999:blog-8712770457197348465.post-64594901322231579822011-02-24T19:29:21.930-08:002011-02-24T19:29:21.930-08:00Thank you very much Jaroslav for your valuable com...Thank you very much Jaroslav for your valuable comments and highlight the fact that Java and external process communicate through buffers and programmer needs to clear both output and error streams to prevent blocking.<br /><br />Once again thank your for adding value into blog.<br /><br />JavinJavin @ FIX Protocol Tutorialshttp://javarevisited.blogspot.comnoreply@blogger.comtag:blogger.com,1999:blog-8712770457197348465.post-91567033806441819342011-02-23T03:55:25.637-08:002011-02-23T03:55:25.637-08:00I agree that executing external processes from Jav...I agree that executing external processes from Java should be used only exceptionally. It does not only create platform dependency but it is a potential minefield. If not done properly it can easily hang the application. Java and external process communicate through buffers. If buffer fills up, the external process stops and waits until java empties the buffer. Java app has to read both output Jaroslav Sedlacekhttps://www.blogger.com/profile/05922033637536895185noreply@blogger.com