How to o install java in mandriva one

[antidrugue]

chmod: cannot access `jre-1_5_0_09-linux-i586-rpm.bin': No such file or directory

This means that the file is not there, or perhaps it is called some other name.

By using "ls" you can list the files in a certain directory, to make sure this "jre..." is there.

i still dont understand what you are talking about...

I am refering to "tab completion", more about that here :
http://en.wikipedia.org/wiki/Command_line_completion

When you have the time, you can try this quick command line tutorial, which will teach you the basics :
http://www.ee.surrey.ac.uk/Teaching/Unix/