从Java运行Linux命令时出错

Question

I am trying to run the below command from java code using Process process =Runtime.getRuntime().exec(command) but getting the error.

Command: repo forall -c 'pwd;git status'

Error: 'pwd;git: -c: line 0: unexpected EOF while looking for matching ''` I am able to run this command from linux terminal but when running from java the problem is with the space after pwd;git. Can anyone help me?

Answer 1

This is an ultra classical mistake and I am frankly surprised that you didn't find the answer to it by searching around.

A Process is not a command interpreter.

However, Runtime.exec() will still try and act as one if you pass it only one argument, and here you'll end up splitting like this:

• repo
• forall
• -c
• 'pwd;git
• status'

Which is obviously not what you want.

Use a ProcessBuilder . I won't do it all for you but here is how to start:

final Process p = new ProcessBuilder()
    .command("repo", "forall", "-c", "pwd; git status")
    // etc etc
    .start();

Link to the javadoc .