blocks|key|1631113|text|我认为你已经回答了你自己的问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1631114|Runtime.getRuntime().exec(myShellScript);|code-block|syntax|javascript|1631115|至于这是否是一种好的做法。您正在尝试使用Java无法执行的shell脚本执行什么操作？|1631116|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I think you have answered your own question with

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

As to whether it is good practice... what are you trying to do with a shell script that you cannot do with Java?

blocks|key|1631230|text|这是可能的，只需像执行任何其他程序一样执行它。只要确保你的脚本有正确的#！(She)行作为脚本的第一行，并确保对该文件有执行权限。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1631231|例如，如果它是一个bash脚本，则将#!/bin/bash放在脚本的顶部，也可以使用chmod+%2Bx。|1631232|另外，如果它是一个好的实践，它不是，特别是对于Java，但是如果它为您节省了大量的时间来移植一个大的脚本，并且您不会因为这样做而获得额外的报酬;)节省您的时间，执行脚本，并将移植到Java放在您的长期任务列表中。|1631233|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

It is possible, just exec it as any other program. Just make sure your script has the proper #! (she-bang) line as the first line of the script, and make sure there are execute permissions on the file.

For example, if it is a bash script put #!/bin/bash at the top of the script, also chmod +x .

Also as for if it's good practice, no it's not, especially for Java, but if it saves you a lot of time porting a large script over, and you're not getting paid extra to do it ;) save your time, exec the script, and put the porting to Java on your long-term todo list.

blocks|key|1416543|text|你真的应该看看Process+Builder。它真的是为这类事情而建的。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1416544|ProcessBuilder+pb+=+new+ProcessBuilder("myshellScript.sh",+"myArg1",+"myArg2");
+Map<String,+String>+env+=+pb.environment();
+env.put("VAR1",+"myValue");
+env.remove("OTHERVAR");
+env.put("VAR2",+env.get("VAR1")+%2B+"suffix");
+pb.directory(new+File("myDir"));
+Process+p+=+pb.start();|code-block|syntax|javascript|1416545|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.oracle.com/javase/6/docs/api/java/lang/ProcessBuilder.html^0|7|F|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]]]]

You should really look at <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/ProcessBuilder.html" rel="noreferrer">Process Builder</a>. It is really built for this kind of thing.

<pre><code>ProcessBuilder pb = new ProcessBuilder("myshellScript.sh", "myArg1", "myArg2");
 Map&lt;String, String&gt; env = pb.environment();
 env.put("VAR1", "myValue");
 env.remove("OTHERVAR");
 env.put("VAR2", env.get("VAR1") + "suffix");
 pb.directory(new File("myDir"));
 Process p = pb.start();
</code></pre>

blocks|key|1631459|text|就像Solaris5.10，它是这样工作的，有一个诀窍，我不知道你的操作系统是否接受它，用\\.+batchstart.sh代替。这个双斜杠可能会有所帮助。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1631460|entityMap^0|19|H|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

Just the same thing that Solaris 5.10 it works like this <code>./batchstart.sh</code> there is a trick I don´t know if your OS accept it use <code>\\. batchstart.sh</code> instead. This double slash may help.

blocks|key|1631544|text|对我来说，所有的事情都必须简单。对于运行脚本，只需执行|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1631545|new+ProcessBuilder("pathToYourShellScript").start();|code-block|syntax|javascript|1631546|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

As for me all things must be simple. 
For running script just need to execute

<pre><code>new ProcessBuilder("pathToYourShellScript").start();
</code></pre>

blocks|key|1416762|text|是的，这样做是可能的。这对我很有帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1416763|import+java.io.BufferedReader;
import+java.io.IOException;
import+java.io.InputStreamReader;

import+org.omg.CORBA.portable.InputStream;

public+static+void+readBashScript()+{
++++++++try+{
++++++++++++Process+proc+=+Runtime.getRuntime().exec("/home/destino/workspace/JavaProject/listing.sh+/");+//Whatever+you+want+to+execute
++++++++++++BufferedReader+read+=+new+BufferedReader(new+InputStreamReader(
++++++++++++++++++++proc.getInputStream()));
++++++++++++try+{
++++++++++++++++proc.waitFor();
++++++++++++}+catch+(InterruptedException+e)+{
++++++++++++++++System.out.println(e.getMessage());
++++++++++++}
++++++++++++while+(read.ready())+{
++++++++++++++++System.out.println(read.readLine());
++++++++++++}
++++++++}+catch+(IOException+e)+{
++++++++++++System.out.println(e.getMessage());
++++++++}
++++}|code-block|syntax|javascript|1416764|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Yes it is possible to do so. This worked out for me.

<pre><code>import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import org.omg.CORBA.portable.InputStream;

public static void readBashScript() {
 try {
 Process proc = Runtime.getRuntime().exec("/home/destino/workspace/JavaProject/listing.sh /"); //Whatever you want to execute
 BufferedReader read = new BufferedReader(new InputStreamReader(
 proc.getInputStream()));
 try {
 proc.waitFor();
 } catch (InterruptedException e) {
 System.out.println(e.getMessage());
 }
 while (read.ready()) {
 System.out.println(read.readLine());
 }
 } catch (IOException e) {
 System.out.println(e.getMessage());
 }
 }
</code></pre>

blocks|key|1416852|text|我认为与|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1416853|System.getProperty("os.name");+|code-block|syntax|javascript|1416854|检查操作系统可以管理shell/bash脚本(如果支持)。如果需要使代码可移植。|1416855|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I think with

<pre><code>System.getProperty("os.name"); 
</code></pre>

Checking the operating system on can manage the shell/bash scrips if such are supported.
if there is need to make the code portable.

blocks|key|1416974|text|您也可以使用Apache+Commons+exec+library。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1416975|示例：|1416976|package+testShellScript;

import+java.io.IOException;
import+org.apache.commons.exec.CommandLine;
import+org.apache.commons.exec.DefaultExecutor;
import+org.apache.commons.exec.ExecuteException;

public+class+TestScript+{
++++int+iExitValue;
++++String+sCommandString;

++++public+void+runScript(String+command){
++++++++sCommandString+=+command;
++++++++CommandLine+oCmdLine+=+CommandLine.parse(sCommandString);
++++++++DefaultExecutor+oDefaultExecutor+=+new+DefaultExecutor();
++++++++oDefaultExecutor.setExitValue(0);
++++++++try+{
++++++++++++iExitValue+=+oDefaultExecutor.execute(oCmdLine);
++++++++}+catch+(ExecuteException+e)+{
++++++++++++System.err.println("Execution+failed.");
++++++++++++e.printStackTrace();
++++++++}+catch+(IOException+e)+{
++++++++++++System.err.println("permission+denied.");
++++++++++++e.printStackTrace();
++++++++}
++++}

++++public+static+void+main(String+args[]){
++++++++TestScript+testScript+=+new+TestScript();
++++++++testScript.runScript("sh+/root/Desktop/testScript.sh");
++++}
}|code-block|syntax|javascript|1416977|最后给出了一个基于Apache+Doc的实例，以供进一步参考。|1416978|entityMap|0|LINK|mutability|MUTABLE|url|https://commons.apache.org/proper/commons-exec/|1|https://commons.apache.org/proper/commons-exec/commandline.html^0|6|R|0|0|0|0|9|A|1|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|9|@$A|13|B|14|1|15]]|C|$]]|$1|M|3|-4|5|6|7|16|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]|U|$5|P|Q|R|C|$S|V]]]]

You can use <a href="https://commons.apache.org/proper/commons-exec/">Apache Commons exec library</a> also.

Example :

<pre><code>package testShellScript;

import java.io.IOException;
import org.apache.commons.exec.CommandLine;
import org.apache.commons.exec.DefaultExecutor;
import org.apache.commons.exec.ExecuteException;

public class TestScript {
 int iExitValue;
 String sCommandString;

 public void runScript(String command){
 sCommandString = command;
 CommandLine oCmdLine = CommandLine.parse(sCommandString);
 DefaultExecutor oDefaultExecutor = new DefaultExecutor();
 oDefaultExecutor.setExitValue(0);
 try {
 iExitValue = oDefaultExecutor.execute(oCmdLine);
 } catch (ExecuteException e) {
 System.err.println("Execution failed.");
 e.printStackTrace();
 } catch (IOException e) {
 System.err.println("permission denied.");
 e.printStackTrace();
 }
 }

 public static void main(String args[]){
 TestScript testScript = new TestScript();
 testScript.runScript("sh /root/Desktop/testScript.sh");
 }
}
</code></pre>

For further reference, An example is given on <a href="https://commons.apache.org/proper/commons-exec/commandline.html">Apache Doc</a> also.

blocks|key|1631796|text|++String+scriptName+=+PATH%2B"/myScript.sh";
++String+commands[]+=+new+String[]{scriptName,"myArg1",+"myArg2"};

++Runtime+rt+=+Runtime.getRuntime();
++Process+process+=+null;
++try{
++++++process+=+rt.exec(commands);
++++++process.waitFor();
++}catch(Exception+e){
++++++e.printStackTrace();
++}++|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1631797|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code> String scriptName = PATH+"/myScript.sh";
 String commands[] = new String[]{scriptName,"myArg1", "myArg2"};

 Runtime rt = Runtime.getRuntime();
 Process process = null;
 try{
 process = rt.exec(commands);
 process.waitFor();
 }catch(Exception e){
 e.printStackTrace();
 } 
</code></pre>

blocks|key|1631802|text|下面是我的例子。希望这是有意义的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1631803|public+static+void+excuteCommand(String+filePath)+throws+IOException{
++++File+file+=+new+File(filePath);
++++if(!file.isFile()){
++++++++throw+new+IllegalArgumentException("The+file+"+%2B+filePath+%2B+"+does+not+exist");
++++}
++++if(isLinux()){
++++++++Runtime.getRuntime().exec(new+String[]+{"/bin/sh",+"-c",+filePath},+null);
++++}else+if(isWindows()){
++++++++Runtime.getRuntime().exec("cmd+/c+start+"+%2B+filePath);
++++}
}
public+static+boolean+isLinux(){
++++String+os+=+System.getProperty("os.name");++
++++return+os.toLowerCase().indexOf("linux")+>=+0;
}

public+static+boolean+isWindows(){
++++String+os+=+System.getProperty("os.name");
++++return+os.toLowerCase().indexOf("windows")+>=+0;
}|code-block|syntax|javascript|1631804|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here is my example. Hope it make sense.

<pre><code>public static void excuteCommand(String filePath) throws IOException{
 File file = new File(filePath);
 if(!file.isFile()){
 throw new IllegalArgumentException("The file " + filePath + " does not exist");
 }
 if(isLinux()){
 Runtime.getRuntime().exec(new String[] {"/bin/sh", "-c", filePath}, null);
 }else if(isWindows()){
 Runtime.getRuntime().exec("cmd /c start " + filePath);
 }
}
public static boolean isLinux(){
 String os = System.getProperty("os.name"); 
 return os.toLowerCase().indexOf("linux") &gt;= 0;
}

public static boolean isWindows(){
 String os = System.getProperty("os.name");
 return os.toLowerCase().indexOf("windows") &gt;= 0;
}
</code></pre>

blocks|key|1417103|text|是的，这是可能的，你已经回答了！关于好的实践，我认为最好是从文件启动命令，而不是直接从代码启动。因此，您必须让Java在现有的.bat、.sh、.ksh中执行命令列表(或一个命令)+...文件。以下是执行文件MyFile.sh中的命令列表的示例|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1417104|++++String[]+cmd+=+{+"sh",+"MyFile.sh",+"\pathOfTheFile"};
++++Runtime.getRuntime().exec(cmd);|code-block|syntax|javascript|1417105|entityMap^0|1R|4|1W|3|20|4|2W|9|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]|$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|L|$]]

Yes, it is possible and you have answered it! About good practises, I think it is better to launch commands from files and not directly from your code. So you have to make Java execute the list of commands (or one command) in an existing <code>.bat</code>, <code>.sh</code> , <code>.ksh</code> ... files. 
Here is an example of executing a list of commands in a file <code>MyFile.sh</code>:

<pre><code> String[] cmd = { "sh", "MyFile.sh", "\pathOfTheFile"};
 Runtime.getRuntime().exec(cmd);
</code></pre>

blocks|key|1631981|text|为了避免硬编码绝对路径，您可以使用以下方法来查找和执行脚本(如果脚本位于根目录中)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1631982|public+static+void+runScript()+throws+IOException,+InterruptedException+{
++++ProcessBuilder+processBuilder+=+new+ProcessBuilder("./nameOfScript.sh");
++++//Sets+the+source+and+destination+for+subprocess+standard+I/O+to+be+the+same+as+those+of+the+current+Java+process.
++++processBuilder.inheritIO();
++++Process+process+=+processBuilder.start();

++++int+exitValue+=+process.waitFor();
++++if+(exitValue+!=+0)+{
++++++++//+check+for+errors
++++++++new+BufferedInputStream(process.getErrorStream());
++++++++throw+new+RuntimeException("execution+of+script+failed!");
++++}
}|code-block|syntax|javascript|1631983|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

To avoid having to hardcode an absolute path, you can use the following method that will find and execute your script if it is in your root directory.

<pre><code>public static void runScript() throws IOException, InterruptedException {
 ProcessBuilder processBuilder = new ProcessBuilder("./nameOfScript.sh");
 //Sets the source and destination for subprocess standard I/O to be the same as those of the current Java process.
 processBuilder.inheritIO();
 Process process = processBuilder.start();

 int exitValue = process.waitFor();
 if (exitValue != 0) {
 // check for errors
 new BufferedInputStream(process.getErrorStream());
 throw new RuntimeException("execution of script failed!");
 }
}
</code></pre>

blocks|key|1417287|text|以下是如何从Java运行Unix+bash或Windows+bat/cmd脚本的示例。可以在脚本上传递参数，并从脚本接收输出。该方法接受任意数量的参数。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1417288|public+static+void+runScript(String+path,+String...+args)+{
++++try+{
++++++++String[]+cmd+=+new+String[args.length+%2B+1];
++++++++cmd[0]+=+path;
++++++++int+count+=+0;
++++++++for+(String+s+:+args)+{
++++++++++++cmd[%2B%2Bcount]+=+args[count+-+1];
++++++++}
++++++++Process+process+=+Runtime.getRuntime().exec(cmd);
++++++++BufferedReader+bufferedReader+=+new+BufferedReader(new+InputStreamReader(process.getInputStream()));
++++++++try+{
++++++++++++process.waitFor();
++++++++}+catch+(Exception+ex)+{
++++++++++++System.out.println(ex.getMessage());
++++++++}
++++++++while+(bufferedReader.ready())+{
++++++++++++System.out.println("Received+from+script:+"+%2B+bufferedReader.readLine());
++++++++}
++++}+catch+(Exception+ex)+{
++++++++System.out.println(ex.getMessage());
++++++++System.exit(1);
++++}
}|code-block|syntax|javascript|1417289|在Unix/Linux上运行时，路径必须类似于Unix(使用'/‘作为分隔符)；在Windows上运行时，请使用'\’。Hier是一个bash脚本(test.sh)的示例，它接收任意数量的参数并将每个参数加倍：|1417290|#!/bin/bash
counter=0
while+[+$#+-gt+0+]
do
++echo+argument+$((counter+%2B=1)):+$1
++echo+doubling+argument+$((counter)):+$(($1%2B$1))
++shift
done|1417291|当调用|1417292|runScript("path_to_script/test.sh",+"1",+"2")|1417293|在Unix/Linux上，输出为：|1417294|Received+from+script:+argument+1:+1
Received+from+script:+doubling+argument+1:+2
Received+from+script:+argument+2:+2
Received+from+script:+doubling+argument+2:+4|1417295|Hier是一个简单的cmd+Windows脚本test.cmd，用于计算输入参数的数量：|1417296|@echo+off
set+a=0
for+%25%25x+in+(%25*)+do+Set+/A+a%2B=1+
echo+%25a%25+arguments+received|1417297|在Windows上调用脚本时|1417298|++runScript("path_to_script\\test.cmd",+"1",+"2",+"3")|1417299|输出为|1417300|Received+from+script:+3+arguments+received|1417301|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|17|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|18|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|19|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|1A|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|1B|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|1C|8|@]|9|@]|A|$]]|$1|Q|3|R|5|D|7|1D|8|@]|9|@]|A|$E|F]]|$1|S|3|T|5|6|7|1E|8|@]|9|@]|A|$]]|$1|U|3|V|5|D|7|1F|8|@]|9|@]|A|$E|F]]|$1|W|3|X|5|6|7|1G|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|D|7|1H|8|@]|9|@]|A|$E|F]]|$1|10|3|11|5|6|7|1I|8|@]|9|@]|A|$]]|$1|12|3|13|5|D|7|1J|8|@]|9|@]|A|$E|F]]|$1|14|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]]|15|$]]

Here is an example how to run an Unix bash or Windows bat/cmd script from Java. Arguments can be passed on the script and output received from the script. The method accepts arbitrary number of arguments.

<pre><code>public static void runScript(String path, String... args) {
 try {
 String[] cmd = new String[args.length + 1];
 cmd[0] = path;
 int count = 0;
 for (String s : args) {
 cmd[++count] = args[count - 1];
 }
 Process process = Runtime.getRuntime().exec(cmd);
 BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
 try {
 process.waitFor();
 } catch (Exception ex) {
 System.out.println(ex.getMessage());
 }
 while (bufferedReader.ready()) {
 System.out.println("Received from script: " + bufferedReader.readLine());
 }
 } catch (Exception ex) {
 System.out.println(ex.getMessage());
 System.exit(1);
 }
}
</code></pre>

When running on Unix/Linux, the path must be Unix-like (with '/' as separator), when running on Windows - use '\'. Hier is an example of a bash script (test.sh) that receives arbitrary number of arguments and doubles every argument:

<pre><code>#!/bin/bash
counter=0
while [ $# -gt 0 ]
do
 echo argument $((counter +=1)): $1
 echo doubling argument $((counter)): $(($1+$1))
 shift
done
</code></pre>

When calling 

<pre><code>runScript("path_to_script/test.sh", "1", "2")
</code></pre>

on Unix/Linux, the output is:

<pre><code>Received from script: argument 1: 1
Received from script: doubling argument 1: 2
Received from script: argument 2: 2
Received from script: doubling argument 2: 4
</code></pre>

Hier is a simple cmd Windows script test.cmd that counts number of input arguments:

<pre><code>@echo off
set a=0
for %%x in (%*) do Set /A a+=1 
echo %a% arguments received
</code></pre>

When calling the script on Windows

<pre><code> runScript("path_to_script\\test.cmd", "1", "2", "3")
</code></pre>

The output is

<pre><code>Received from script: 3 arguments received
</code></pre>

blocks|key|1632115|text|对于linux使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1632116|public+static+void+runShell(String+directory,+String+command,+String[]+args,+Map<String,+String>+environment)
{
++++try
++++{
++++++++if(directory.trim().equals(""))
++++++++++++directory+=+"/";

++++++++String[]+cmd+=+new+String[args.length+%2B+1];
++++++++cmd[0]+=+command;

++++++++int+count+=+1;

++++++++for(String+s+:+args)
++++++++{
++++++++++++cmd[count]+=+s;
++++++++++++count%2B%2B;
++++++++}

++++++++ProcessBuilder+pb+=+new+ProcessBuilder(cmd);

++++++++Map<String,+String>+env+=+pb.environment();

++++++++for(String+s+:+environment.keySet())
++++++++++++env.put(s,+environment.get(s));

++++++++pb.directory(new+File(directory));

++++++++Process+process+=+pb.start();

++++++++BufferedReader+inputReader+=+new+BufferedReader(new+InputStreamReader(process.getInputStream()));
++++++++BufferedWriter+outputReader+=+new+BufferedWriter(new+OutputStreamWriter(process.getOutputStream()));
++++++++BufferedReader+errReader+=+new+BufferedReader(new+InputStreamReader(process.getErrorStream()));

++++++++int+exitValue+=+process.waitFor();

++++++++if(exitValue+!=+0)+//+has+errors
++++++++{
++++++++++++while(errReader.ready())
++++++++++++{
++++++++++++++++LogClass.log("ErrShell:+"+%2B+errReader.readLine(),+LogClass.LogMode.LogAll);
++++++++++++}
++++++++}
++++++++else
++++++++{
++++++++++++while(inputReader.ready())
++++++++++++{
++++++++++++++++LogClass.log("Shell+Result+:+"+%2B+inputReader.readLine(),+LogClass.LogMode.LogAll);
++++++++++++}
++++++++}
++++}
++++catch(Exception+e)
++++{
++++++++LogClass.log("Err:+RunShell,+"+%2B+e.toString(),+LogClass.LogMode.LogAll);
++++}
}

public+static+void+runShell(String+path,+String+command,+String[]+args)
{
++++try
++++{
++++++++String[]+cmd+=+new+String[args.length+%2B+1];

++++++++if(!path.trim().isEmpty())
++++++++++++cmd[0]+=+path+%2B+"/"+%2B+command;
++++++++else
++++++++++++cmd[0]+=+command;

++++++++int+count+=+1;

++++++++for(String+s+:+args)
++++++++{
++++++++++++cmd[count]+=+s;
++++++++++++count%2B%2B;
++++++++}

++++++++Process+process+=+Runtime.getRuntime().exec(cmd);

++++++++BufferedReader+inputReader+=+new+BufferedReader(new+InputStreamReader(process.getInputStream()));
++++++++BufferedWriter+outputReader+=+new+BufferedWriter(new+OutputStreamWriter(process.getOutputStream()));
++++++++BufferedReader+errReader+=+new+BufferedReader(new+InputStreamReader(process.getErrorStream()));

++++++++int+exitValue+=+process.waitFor();

++++++++if(exitValue+!=+0)+//+has+errors
++++++++{
++++++++++++while(errReader.ready())
++++++++++++{
++++++++++++++++LogClass.log("ErrShell:+"+%2B+errReader.readLine(),+LogClass.LogMode.LogAll);
++++++++++++}
++++++++}
++++++++else
++++++++{
++++++++++++while(inputReader.ready())
++++++++++++{
++++++++++++++++LogClass.log("Shell+Result:+"+%2B+inputReader.readLine(),+LogClass.LogMode.LogAll);
++++++++++++}
++++++++}
++++}
++++catch(Exception+e)
++++{
++++++++LogClass.log("Err:+RunShell,+"+%2B+e.toString(),+LogClass.LogMode.LogAll);
++++}
}|code-block|syntax|javascript|1632117|和使用；|1632118|ShellAssistance.runShell("",+"pg_dump",+new+String[]{"-U",+"aliAdmin",+"-f",+"/home/Backup.sql",+"StoresAssistanceDB"});|1632119|或|1632120|ShellAssistance.runShell("",+"pg_dump",+new+String[]{"-U",+"aliAdmin",+"-f",+"/home/Backup.sql",+"StoresAssistanceDB"},+new+Hashmap<>());|1632121|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|$]]

for linux use

<pre><code>public static void runShell(String directory, String command, String[] args, Map&lt;String, String&gt; environment)
{
 try
 {
 if(directory.trim().equals(""))
 directory = "/";

 String[] cmd = new String[args.length + 1];
 cmd[0] = command;

 int count = 1;

 for(String s : args)
 {
 cmd[count] = s;
 count++;
 }

 ProcessBuilder pb = new ProcessBuilder(cmd);

 Map&lt;String, String&gt; env = pb.environment();

 for(String s : environment.keySet())
 env.put(s, environment.get(s));

 pb.directory(new File(directory));

 Process process = pb.start();

 BufferedReader inputReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
 BufferedWriter outputReader = new BufferedWriter(new OutputStreamWriter(process.getOutputStream()));
 BufferedReader errReader = new BufferedReader(new InputStreamReader(process.getErrorStream()));

 int exitValue = process.waitFor();

 if(exitValue != 0) // has errors
 {
 while(errReader.ready())
 {
 LogClass.log("ErrShell: " + errReader.readLine(), LogClass.LogMode.LogAll);
 }
 }
 else
 {
 while(inputReader.ready())
 {
 LogClass.log("Shell Result : " + inputReader.readLine(), LogClass.LogMode.LogAll);
 }
 }
 }
 catch(Exception e)
 {
 LogClass.log("Err: RunShell, " + e.toString(), LogClass.LogMode.LogAll);
 }
}

public static void runShell(String path, String command, String[] args)
{
 try
 {
 String[] cmd = new String[args.length + 1];

 if(!path.trim().isEmpty())
 cmd[0] = path + "/" + command;
 else
 cmd[0] = command;

 int count = 1;

 for(String s : args)
 {
 cmd[count] = s;
 count++;
 }

 Process process = Runtime.getRuntime().exec(cmd);

 BufferedReader inputReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
 BufferedWriter outputReader = new BufferedWriter(new OutputStreamWriter(process.getOutputStream()));
 BufferedReader errReader = new BufferedReader(new InputStreamReader(process.getErrorStream()));

 int exitValue = process.waitFor();

 if(exitValue != 0) // has errors
 {
 while(errReader.ready())
 {
 LogClass.log("ErrShell: " + errReader.readLine(), LogClass.LogMode.LogAll);
 }
 }
 else
 {
 while(inputReader.ready())
 {
 LogClass.log("Shell Result: " + inputReader.readLine(), LogClass.LogMode.LogAll);
 }
 }
 }
 catch(Exception e)
 {
 LogClass.log("Err: RunShell, " + e.toString(), LogClass.LogMode.LogAll);
 }
}
</code></pre>

and for usage;

<pre><code>ShellAssistance.runShell("", "pg_dump", new String[]{"-U", "aliAdmin", "-f", "/home/Backup.sql", "StoresAssistanceDB"});
</code></pre>

OR

<pre><code>ShellAssistance.runShell("", "pg_dump", new String[]{"-U", "aliAdmin", "-f", "/home/Backup.sql", "StoresAssistanceDB"}, new Hashmap&lt;&gt;());
</code></pre>

It is quite simple to run a Unix command from Java. 

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

But is it possible to run a Unix shell script from Java code? If yes, would it be a good practice to run a shell script from within Java code?

How to run Unix shell script from Java code?

Windows

Linux

Java

Unix

从Java运行Unix命令非常简单。Runtime.getRuntime().exec(myCommand);但是从Java代码运行Unix shell脚本是可能的吗？如果是，那么从Java代码中运行shell脚本是不是一种好的做法？

问如何从Java代码运行Unix shell脚本？
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