Several commands in one Runtime

[Nepomuk]

Hi!
I'm trying to execute a few commands after each other with

Runtime.getRuntime().exec("cmd /k" + ...); // or cmd /c
 

For example, I'd like to process this code:

cd /D D:\
dir
exit
 

(this is just an example of course)
Basically, I want to change the directory and then execute my command, instead of executing it in the current directory. However

cd /D D:\ && dir
 

lists the current directory.

Of course, this solution will be for Windows, but I'll also want to do it under Linux/UNIX, so a platform specific solution would be less desirable.

Greetings,
Nepomuk

[Nepomuk]

OK, I've found the solution for my problem, even though it isn't a general solution.
I just use

Runtime.getRuntime().exec(cmd, null, new File(targetFolder));
 

with cmd being a String containing the command and targetFolder being the Path, it should be executed in.

Nevertheless, I would like to know, how you can execute several commands in one "cmd /c" or "cmd /k".

Greetings,
Nepomuk

[r035198x]

Hi!
I'm trying to execute a few commands after each other with

Runtime.getRuntime().exec("cmd /k" + ...); // or cmd /c
 

For example, I'd like to process this code:

cd /D D:\
dir
exit
 

(this is just an example of course)
Basically, I want to change the directory and then execute my command, instead of executing it in the current directory. However

cd /D D:\ && dir
 

lists the current directory.

Of course, this solution will be for Windows, but I'll also want to do it under Linux/UNIX, so a platform specific solution would be less desirable.

Greetings,
Nepomuk

Command to change directory is different for different platforms so I don't think you can get an entirely platform independeant solution.
You could test for the os using System.getProperty.
Also for multiple commands, wouldn't a batch file (or bash) be more appropriate?

[Nepomuk]

Command to change directory is different for different platforms so I don't think you can get an entirely platform independeant solution.
You could test for the os using System.getProperty.
Also for multiple commands, wouldn't a batch file (or bash) be more appropriate?

In this case a batch file wouldn't be a good idea, as I have to modify the commands. (Or at least one of them.) And I'm already checking the Platform with System.getProperty. However, at least on Windows and Linux, the Command for changing directory is very similar (cd in both cases, but with Windows cd /D in some cases...).

I've been reading the Runtime API and I found something, that I don't understand and which might be the right direction: What is a "environment variable" in this case?

Greetings,
Nepomuk