我正在尝试从Java执行bash脚本,它返回错误/ bin / bash：’/ home / nika / NetBeansProjects / Parallel Framework / process-executor.sh’：没有这样的文件或目录,我正在使用ubuntu使用netbeans8& 14.04 jdk8.

这是我的代码：

public class Process {
public static void main(String[] args) {try {ProcessBuilder pb = null;Process p;String cmd2 = "";String workingDir = System.getProperty("user.dir");System.out.println(""+workingDir);String scriptloc="'"+workingDir+"/process-executor.sh'";String cmd[] = {"/bin/bash",scriptloc , "workspace/ForDemo.java", "ForDemo.java", "ForDemo"};for (int i = 0; i <= cmd.length-1; i++) {cmd2 += " "+cmd[i];}System.out.println("" + cmd2);pb = new ProcessBuilder(cmd);pb.directory(new File(workingDir));p = null;try {p = pb.start();} catch (IOException ex) {Logger.getLogger(Process.class.getName()).log(Level.SEVERE, null, ex);}BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));BufferedReader stdError = new BufferedReader(new InputStreamReader(p.getErrorStream()));// read the output from the commandSystem.out.println("Here is the standard output of the command:
");String s = null;String output = "";while ((s = stdInput.readLine()) != null) {System.out.println(s);}output = "";// read any errors from the attempted commandSystem.out.println("Here is the standard error of the command (if any):
");while ((s = stdError.readLine()) != null) {System.out.println(s);}} catch (IOException ex) {Logger.getLogger(Process.class.getName()).log(Level.SEVERE, null, ex);}
}
}

但是当我从终端执行此命令时,它会执行脚本
?bin / bash’/ home / nika / NetBeansProjects / Parallel Framework / process-executor.sh’工作区/ForDemo.java ForDemo.java ForDemo

我的脚本存在另一个问题,它不执行cd命令,并显示“ / home / nika / NetBeansProjects / Parallel Framework / workspace / ForDemo.java /”：没有这样的文件或目录

我脚本的内容是

#!/bin/bash PATH=/bin:/usr/bin:/usr/local/binWORK=${PWD}/workspace/echo "'${WORK}${2}'"cd  "'${WORK}${2}/'"javac $2 java $3 echo "$3"

我的目录层次结构就像

-并行框架
???-process-executor.sh
???-工作区
??????-ForDemo.java(目录)
??????????—- ForDemo.java

最佳答案

在这种情况下,请不要在脚本的路径中使用单引号. e.像这样修复您的scriptloc变量：

String scriptloc= workingDir + "/process-executor.sh";

如果要在命令行中执行此命令(以转义路径中的空格字符),则必须使用单引号,但在这种情况下则没有必要,因为您已经在cmd []数组中隐式指定该路径只是一个“单元”