Java 使用 shell 脚本在远程机器上执行多个命令
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Multiple commands on remote machine using shell script
提问by Lalith
I have a Java program Desktop/testfolder/xyz.jaron a remote machine. It has a configuration file on the same folder. When I SSH into the machine, I do:
我Desktop/testfolder/xyz.jar在远程机器上有一个 Java 程序。它在同一文件夹中有一个配置文件。当我通过 SSH 连接到机器时，我会这样做：
"ssh user@remote java -cp Desktop/testfolder/xyz.jar Main"
The problem here is the configuration file is not in the path, as we are in the home folder so my program cannot read the configuration.
这里的问题是配置文件不在路径中，因为我们在主文件夹中，所以我的程序无法读取配置。
I want to first go into that folder and then run the program from that folder. In a shell script if I did this
我想先进入该文件夹，然后从该文件夹运行程序。如果我这样做，在 shell 脚本中
"ssh user@remote cd Desktop/testfolder"
"java -cp xyz.jar Main"
it executes the first statement and when the second statement is run it runs on my current machine not the remote machine.
它执行第一条语句，当第二条语句运行时，它运行在我当前的机器上而不是远程机器上。
Can we do only one command or there are any other solutions for this?
我们可以只执行一个命令还是有其他解决方案？
采纳答案by Robin
回答by Trey Hunner
You could try separating the commands by a semicolon:
您可以尝试用分号分隔命令：
ssh user@remote "cd Desktop/testfolder ; java -cp xyz.jar Main"
回答by Dirk
If you want to split your commands over multiple lines for the sake of readability, you could also pass the list of commands to the bashcommand as follows:
如果您想将命令拆分为多行以提高可读性，您还可以将命令列表传递给bash命令，如下所示：
ssh [email protected] bash -c "'
cd Desktop/testfolder
java -cp xyz.jar Main
'"
