Android之应用中执行Linux命令

下面，我以修改某一文件的权限为777为例：

/** 执行Linux命令，并返回执行结果。 */

public static String exec(String[] args) {

String result = "";

ProcessBuilder processBuilder = new ProcessBuilder(args);

Process process = null;

InputStream errIs = null;

InputStream inIs = null;

try {

ByteArrayOutputStream baos = new ByteArrayOutputStream();

int read = -1;

process = processBuilder.start();

errIs = process.getErrorStream();

while ((read = errIs.read()) != -1) {

baos.write(read);

}

baos.write('\n');

inIs = process.getInputStream();

while ((read = inIs.read()) != -1) {

baos.write(read);

}

byte[] data = baos.toByteArray();

result = new String(data);

} catch (IOException e) {

e.printStackTrace();

} catch (Exception e) {

e.printStackTrace();

} finally {

try {

if (errIs != null) {

errIs.close();

}

if (inIs != null) {

inIs.close();

}

} catch (IOException e) {

e.printStackTrace();

}

if (process != null) {

process.destroy();

}

}

return result;

}

下面在我们需要的地方调用上面函数即可：

String[] args = { "chmod", "777", "(文件路径)"};

exec(args);