blocks|key|142381|text|您实际上不需要从xterm会话中运行命令，可以直接运行它：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|142382|String[]+arguments+=+new+String[]+{"/path/to/executable",+"arg0",+"arg1",+"etc"};
Process+proc+=+new+ProcessBuilder(arguments).start();|code-block|syntax|javascript|142383|如果该进程以交互方式响应输入流，并且您希望注入值，则执行之前的操作：|142384|OutputStream+out+=+proc.getOutputStream();++
out.write("command\n");++
out.flush();|142385|不过，不要忘记结尾的'\n‘，因为大多数应用程序都会使用它来识别单个命令输入的结尾。|142386|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

You don't actually need to run a command from an xterm session, you can run it directly:

<pre><code>String[] arguments = new String[] {"/path/to/executable", "arg0", "arg1", "etc"};
Process proc = new ProcessBuilder(arguments).start();
</code></pre>

If the process responds interactively to the input stream, and you want to inject values, then do what you did before:

<pre><code>OutputStream out = proc.getOutputStream(); 
out.write("command\n"); 
out.flush();
</code></pre>

Don't forget the '\n' at the end though as most apps will use it to identify the end of a single command's input.

blocks|key|360298|text|正如其他人所说，您可以在不使用xterm的情况下运行外部程序。但是，如果您想在终端窗口中运行它，例如让用户与它交互，xterm允许您指定程序作为参数运行。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|360299|xterm+-e+any+command|code-block|syntax|javascript|360300|在Java代码中，这变成了：|360301|String[]+command+=+{+"xterm",+"-e",+"my",+"command",+"with",+"parameters"+};
Runtime.getRuntime().exec(command);|360302|或者，使用ProcessBuilder：|360303|String[]+command+=+{+"xterm",+"-e",+"my",+"command",+"with",+"parameters"+};
Process+proc+=+new+ProcessBuilder(command).start();|360304|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

As others said, you may run your external program without xterm. However, if you want to run it in a terminal window, e.g. to let the user interact with it, xterm allows you to specify the program to run as parameter.

<pre><code>xterm -e any command
</code></pre>

In Java code this becomes:

<pre><code>String[] command = { "xterm", "-e", "my", "command", "with", "parameters" };
Runtime.getRuntime().exec(command);
</code></pre>

Or, using ProcessBuilder:

<pre><code>String[] command = { "xterm", "-e", "my", "command", "with", "parameters" };
Process proc = new ProcessBuilder(command).start();
</code></pre>

blocks|key|142453|text|我投票给Karthik+T的答案。您不需要打开终端就可以运行命令。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|142454|例如,|142455|//+file:+RunShellCommandFromJava.java
import+java.io.BufferedReader;
import+java.io.InputStreamReader;

public+class+RunShellCommandFromJava+{

++++public+static+void+main(String[]+args)+{

++++++++String+command+=+"ping+-c+3+www.google.com";

++++++++Process+proc+=+Runtime.getRuntime().exec(command);

++++++++//+Read+the+output

++++++++BufferedReader+reader+=++
++++++++++++++new+BufferedReader(new+InputStreamReader(proc.getInputStream()));

++++++++String+line+=+"";
++++++++while((line+=+reader.readLine())+!=+null)+{
++++++++++++System.out.print(line+%2B+"\n");
++++++++}

++++++++proc.waitFor();+++

++++}
}+|code-block|syntax|javascript|142456|输出：|142457|$+javac+RunShellCommandFromJava.java
$+java+RunShellCommandFromJava
PING+http://google.com+(123.125.81.12):+56+data+bytes
64+bytes+from+123.125.81.12:+icmp_seq=0+ttl=59+time=108.771+ms
64+bytes+from+123.125.81.12:+icmp_seq=1+ttl=59+time=119.601+ms
64+bytes+from+123.125.81.12:+icmp_seq=2+ttl=59+time=11.004+ms

---+http://google.com+ping+statistics+---
3+packets+transmitted,+3+packets+received,+0.0%25+packet+loss
round-trip+min/avg/max/stddev+=+11.004/79.792/119.601/48.841+ms|142458|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I vote for Karthik T's answer. you don't need to open a terminal to run commands. 

For example,

<pre><code>// file: RunShellCommandFromJava.java
import java.io.BufferedReader;
import java.io.InputStreamReader;

public class RunShellCommandFromJava {

 public static void main(String[] args) {

 String command = "ping -c 3 www.google.com";

 Process proc = Runtime.getRuntime().exec(command);

 // Read the output

 BufferedReader reader = 
 new BufferedReader(new InputStreamReader(proc.getInputStream()));

 String line = "";
 while((line = reader.readLine()) != null) {
 System.out.print(line + "\n");
 }

 proc.waitFor(); 

 }
} 
</code></pre>

The output: 

<pre><code>$ javac RunShellCommandFromJava.java
$ java RunShellCommandFromJava
PING http://google.com (123.125.81.12): 56 data bytes
64 bytes from 123.125.81.12: icmp_seq=0 ttl=59 time=108.771 ms
64 bytes from 123.125.81.12: icmp_seq=1 ttl=59 time=119.601 ms
64 bytes from 123.125.81.12: icmp_seq=2 ttl=59 time=11.004 ms

--- http://google.com ping statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 11.004/79.792/119.601/48.841 ms
</code></pre>

blocks|key|142492|text|我不知道为什么，但出于某种原因，"/bin/bash“版本对我不起作用。取而代之的是，按照给定的here+at+Oracle+Docs.示例，可以使用更简单的版本|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|142493|String[]+args+=+new+String[]+{"ping",+"www.google.com"};
Process+proc+=+new+ProcessBuilder(args).start();|code-block|syntax|javascript|142494|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.oracle.com/javase/7/docs/api/java/lang/ProcessBuilder.html^0|1C|K|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

I don't know why, but for some reason, the "/bin/bash" version didn't work for me.
Instead, the simpler version worked, following the example given <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/ProcessBuilder.html" rel="nofollow">here at Oracle Docs.</a>

<pre><code>String[] args = new String[] {"ping", "www.google.com"};
Process proc = new ProcessBuilder(args).start();
</code></pre>

blocks|key|142515|text|我知道这个问题很老了，但是这里有一个封装了ProcessBuilder应用程序接口的library。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|142516|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/mhashim6/Simple-Commander^0|16|7|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I know this question is quite old, but here's a <a href="https://github.com/mhashim6/Simple-Commander" rel="nofollow noreferrer">library</a> that encapsulates the ProcessBuilder api.

I need to run a command at terminal in Fedora 16 from a JAVA program. I tried using

<pre><code>Runtime.getRuntime().exec("xterm"); 
</code></pre>

but this just opens the terminal, i am unable to execute any command.

I also tried this:

<pre><code>OutputStream out = null;
Process proc = new ProcessBuilder("xterm").start();
out = proc.getOutputStream(); 
out.write("any command".getBytes()); 
out.flush(); 
</code></pre>

but still i can only open the terminal, but can't run the command.
Any ideas as to how to do it?

how to run a command at terminal from java program?

Java

我需要在Fedora16的终端上从JAVA程序运行一个命令。我试着用Runtime.getRuntime().exec("xterm"); 但这只是打开了终端，我无法执行任何命令。我还尝试了这个：OutputStream out = null;Process proc = new ProcessBuilder("xte...

问如何从java程序运行终端命令？
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