我的程序不是从eclipse运行的，而是通过ubuntu的终端运行的。
下面是我用java运行的shell脚本

# !/usr/bin/env bash

# Running sqoop commands

s="$(sqoop help)"

echo "$s"

下面是java代码

package flexibility;

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Flex {

    public static void main(String args[]) throws Exception {

        String s = null;
        String line = "";
        String sqoopCommand = "sqoop help";

        try {

            Process p = Runtime.getRuntime().exec("/home/avinash/sqoop.sh");
            p.waitFor();

            StringBuffer output = new StringBuffer();
            BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));

            BufferedReader stdError = new BufferedReader(new InputStreamReader(p.getErrorStream()));

            while ((line = stdInput.readLine()) != null) {
                output.append(line + "\n");

            }
            while ((line = stdError.readLine()) != null) {
                output.append(line + "\n");

            }
            System.out.println("### " + output);
        } catch (Throwable t) {
            t.printStackTrace();
        }
    }
}

错误消息：

/home/avinash/sqoop.sh:第5行：sqoop:未找到命令