Java operation Linux, invoke shell command

Importorg.junit.jupiter.api.Test;ImportJava.io.BufferedReader;Importjava.io.IOException;ImportJava.io.InputStreamReader;ImportJava.io.OutputStreamWriter;ImportJava.io.PrintWriter;ImportJava.util.logging.Level;ImportJava.util.logging.Logger; Public classTest001 { Public StaticString exec (String command)throwsinterruptedexception {String returnstring= ""; Process Pro=NULL; Runtime Runtime=Runtime.getruntime (); if(RunTime = =NULL) {System.err.println ("Create Runtime false!"); }        Try{Pro=runtime.exec (command); BufferedReader input=NewBufferedReader (NewInputStreamReader (Pro.getinputstream ())); PrintWriter Output=NewPrintWriter (NewOutputStreamWriter (Pro.getoutputstream ()));            String Line;  while(line = Input.readline ())! =NULL) {returnstring= returnstring + line + "\ n";            } input.close ();            Output.close ();        Pro.destroy (); } Catch(IOException ex) {Logger.getlogger (Test001.class. GetName ()). log (Level.severe,NULL, ex); }        returnreturnstring; } @Test Public voidTest ()throwsException {System.out.println (EXEC ("Ls-al")); }}

MAC also works

Call the shell script to determine if the normal execution, if the normal end, the process of the WAITFOR () method returns 0

 Public Static void Callshell (String shellstring) {      try  {          = runtime.getruntime (). EXEC ( shellstring);           int exitvalue = process.waitfor ();           if (0! = exitvalue) {              log.error ("Call shell failed. Error code is:" + exitvalue);          }       Catch (Throwable e) {          log.error ("Call Shell failed. "+ e);      }  }

 PackageTest.shell;ImportJava.io.BufferedReader;ImportJava.io.FileOutputStream;Importjava.io.IOException;ImportJava.io.OutputStream;ImportJava.io.OutputStreamWriter;ImportJava.text.DateFormat;ImportJava.text.SimpleDateFormat;Importjava.util.Date; Public classJavashellutil {//Basic Path    Private Static FinalString basepath = "/tmp/"; //location of log files that record shell execution (absolute path)    Private Static FinalString executeshelllogfile = basepath + "ExecuteShell.log"; //The file name (absolute path) of the shell that sent the file to the Kondor system    Private Static FinalString sendkondorshellname = basepath + "sendkondorfile.sh";  Public intExecuteshell (String Shellcommand)throwsIOException {intSuccess = 0; StringBuffer StringBuffer=NewStringBuffer (); BufferedReader BufferedReader=NULL;//format Date time, use when loggingDateFormat DateFormat =NewSimpleDateFormat ("Yyyy-mm-dd HH:mm:SS"); Try{stringbuffer.append (Dateformat.format (NewDate ()). Append ("Prepare to execute Shell command"). Append (Shellcommand). Append ("\ r \ n"); Process PID=NULL; string[] cmd= {"/bin/sh", "-C", Shellcommand}; //Execute shell CommandPID =runtime.getruntime (). exec (CMD); if(PID! =NULL) {stringbuffer.append ("Process number:"). Append (Pid.tostring ()). Append ("\ r \ n"); //The BufferedReader is used to read the Shell's output BufferedReader = new BufferedReader (New InputStreamReader (Pid.getinputstream ()), (1024x768);pid.waitfor (); } Else{stringbuffer.append ("No pid\r\n"); } stringbuffer.append (Dateformat.format (NewDate ())). Append ("The shell command has been executed \ r \ n The result is: \ r \ n"); String Line=NULL; //reads the output from the shell and adds it to the StringBuffer             while(BufferedReader! =NULL&& (line = Bufferedreader.readline ())! =NULL) {stringbuffer.append (line). Append ("\ r \ n"); }        } Catch(Exception IoE) {stringbuffer.append ("Exception occurred executing shell command: \ r \ n"). Append (Ioe.getmessage ()). Append ("\ r \ n").); } finally {            if(BufferedReader! =NULL) {OutputStreamWriter OutputStreamWriter=NULL; Try{bufferedreader.close (); //output the execution of the shell to a log fileOutputStream OutputStream =NewFileOutputStream (Executeshelllogfile); OutputStreamWriter=NewOutputStreamWriter (OutputStream, "UTF-8");                Outputstreamwriter.write (Stringbuffer.tostring ()); } Catch(Exception e) {e.printstacktrace (); } finally{outputstreamwriter.close (); }} Success= 1; }        returnsuccess; }}  

More information:

Http://www.cnblogs.com/shihaiming/p/5884859.html

Http://www.jb51.net/article/69930.htm

Java Operations Linux, invoking shell commands