Command line text

In java, how can you use the command line parameter 'ipconfig > ipInfo.txt', and then to save the text file onto you USB key?
Ive tried many ways, but can't get my head around it.

Thanks

Are you asking how to read a file and write another file?

Hm not exactly. If you go into command prompt and type in: ipconfig > ipInfo.txt, the output of the command is copied into a created file called 'ipInfo.txt'.

My question is, how can you do that in java? (As far as i know it will be executed from the exec() method from the Runtime class)

Thanks

Yes the Process class and Runtime class can be used to execute a program.

Yeah i know. Ive have a method that reads in an array of commands and executes them.
The sample code is an array of commands that are passed in the method called execCmds(String[] commands).

public static void main(String args[])
{
//List of commands
String[] command = new String[5];
command[0] = "cmd";
command[1] = "/C";
command[2] = "cd";
command[3] = "f:\\Year 3\\Semester 6\\Team Project";
command[4] = "ipconfig > ipInfo.txt";

try
{
//Execute the commands from array
service.execCmds(command);
}
//catch any exceptions
catch(Exception e)
{
//do nothing
}
}

But I get an error while it tried to run:

The filename, directory name, or volume label syntax is incorrect.

----jGRASP wedge2: exit code for process is 0.
----jGRASP: operation complete.

Thanks

Quote:

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But I get an error

---

Is that error written to the text file by the ipInfo command?

What are the contents of the command[] array supposed to do?
Why not use another version of the exec() method?

No. The command did not even create the text file at all. I think I have the commands in a wrong order, although in not sure?
Other commands work fine such as 'dir', 'cd', 'ipcinfig' etc. But not these set of commands/

If you want to change the working directory the exec() method has an override to do that.